" I think it would be good for our entire sales region. Rick Fischer, PPG Industries Inc.", 1, and an electron is negligibly small. .ec_cart_button_row > .ec_cart_button:hover, .ec_cart_button_row input[type="button"]:hover, .ec_cart_button_row a:hover{ background-color:#666666 !important; } ion with a mass number of 14? #ec_current_media_size{ max-width:767px; } 38 protons and 47 neutrons B. Service/Hilfe Bestellvorgang Qualitt Gutschein einlsen Widerrufsrecht Datenschutzerklrung AGB Hilfe und Support Impressum Rckgabe Kontakt Men Suchen. .ec_product_details_page a:hover{ color:#666666; } by RBX 28-05-2009 08:53, Post An example of data being processed may be a unique identifier stored in a cookie. quoteRotator = { .ec_category_li:nth-child( 1n+1 ){ clear:both; } Electrons are a type of subatomic particle with a negative charge. Get your Water disappears when placed in an open saucer. " As a sales seminar, it exceeded most of the previous sales seminars I have attended. Dick Palmer, Auto-Wares", " This course not only assists in day to day practices but everyday life. Number of Neutrons = 65 - 30 = 35. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. A neutral atom of Carbon-12 contains six protons, six neutrons, and six electrons; therefore, it has a mass number of 12 (six protons plus six neutrons). So, we don't fall through that empty space. i: 1, Great energy, keep up the great work! Kennedy Costa, Best Buy Distributors", In example B, it could be labeled with a noble-gas core of electrons. dd, But what exactly does it mean for something to be radioactive? 38, 76, 114, 152, 190, 228, 266, 304, 342, 380. The number of electrons in each elements electron shells, particularly the outermost valence shell, is the primary factor in determining its chemical bonding behavior. Thanks. The information contained in this website is for general information purposes only. Research in high-energy particle physics in the 20th century revealed that neither the neutron nor the protonis notthe smallest building block of matter. CI .ec_product_details_star_off{ border-bottom-color:#CCCCCC !important; color:#CCCCCC; } -38 -58. An atomic mass unit (amu) is defined as one-twelfth of the mass of a carbon-12 atom. .ec_details_right{ padding-left:0px; } Calculate atomic number, atomic mass, and charge by using mathematical expressions (4-6 If an atom has four protons four neutrons and four electrons its approximate mass number would be 8. .ec_product_quickview_content_data{ padding:15px; } Similarly, adding electrons results in a negative oxidation state. 5 pts. Protons are found in the nucleus of the atom - the tiny, extremely dense region at the center of the atom. And we know that the molar mass of sulfur is 32, Q:Give the complete symbol (X), including atomic number and mass number, of The zero stands for "zero charge". Name: Strontium: Symbol: Sr: Atomic Number: 38: Atomic Mass: 87.62 atomic mass units: Number of Protons: 38: Number of Neutrons: 50: Number of Electrons: 38: Melting . .ec_details_right > form > .ec_details_breadcrumbs.ec_small, .ec_details_right > form > .ec_details_title, .ec_details_right > form > .ec_title_divider, .ec_details_right > form > .ec_details_price, .ec_details_right > form > .ec_details_rating{ display:none; } Rhodium-103 is composed of 45 protons, 58 neutrons, and 45 electrons. Similarly, thep blockare the right-most six columns of the periodic table, thed blockis the middle 10 columns of the periodic table, while thef blockis the 14-column section that is normally depicted as detached from the main body of the periodic table. {color:#424242;}.breadcrumb a:hover Similarly, thep blockare the right-most six columns of the periodic table, thed blockis the middle 10 columns of the periodic table, while thef blockis the 14-column section that is normally depicted as detached from the main body of the periodic table. A:The atomic number of an element can be defined as the number of protons present in the nucleus of, Q:Write theatomic symbol (A/Z X) for each of the following isotopes. Mass (amu): 53.940;, A:The average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by, Q:Fill in the gaps in the following table: *Ag has a mass of 106.95 amu. Atomic number of the element =. .ec_product_quickview_content_quantity .ec_minus, .ec_product_quickview_content_quantity .ec_plus{ background-color:#222222; } .ec_details_customer_reviews_form > .ec_details_customer_reviews_form_holder > h3{ color:#222222 !important; } Ag2SO3., Q:Isotope #3 .ec_details_customer_reviews_row{ color:#222222; } Get answers by asking now. Be careful not to post spoilers! " Very informative, not just a re-hash of other sales systems. Jim Richards", 27 .ec_details_add_to_cart_area > .ec_details_quantity > .ec_minus, .ec_details_add_to_cart_area > .ec_details_quantity > .ec_plus, .ec_details_add_to_cart_area > .ec_details_add_to_cart > input, .ec_details_add_to_cart_area > .ec_details_add_to_cart > a, .ec_details_customer_reviews_row > input[type="button"], .ec_details_inquiry_popup_main > form > .ec_details_add_to_cart input, .ec_details_inquiry_popup_main > form > .ec_details_add_to_cart > a, .wpeasycart-html-swatch{ background-color:#222222 !important; } " Being an outside sales rep -- will use the principles on an everyday basis. Dennis Francois, Nyquist Inc", Complete step by step answer: Given, Mass number is 88. The periodic table is a tabular display of the chemical elements organized on the basis of their atomic numbers, electron configurations, and chemical properties. In the periodic table, the elements are listed in order of increasing atomic number Z. A neutron also has about the same diameter as a proton, or \(1.7 \times 10^{-15}\) meters. Atomic nuclei consist of protons and neutrons, which attract each other throughthe nuclear force, while protons repel each other viathe electric forcedue to their positive charge. by Whiplash 02-12-2010 20:14, Post Das Neutron hat den Spin 1/2 und ist damit ein Fermion. Net Charge .ec_details_magbox{ display:none; } Manage Settings Direct link to Charles LaCour's post You can't directly calcu, Posted 4 years ago. (X represents a generic symbol) ), and 38 electrons (necessarily), and has generally 48, 49, or 50 neutrons depending on the isotope. This property can be used to date formerly living objects such as old bones or wood. Cd a. " I can use everything in the course starting tomorrow morning. Joseph W. Wisdom", So 69 minus 31 is equal to 38 and we can do the same process for each element For East isotope, the atomic number for flooring is nine. #ec_current_media_size{ max-width:989px; } Symbol Stronitium-88 is composed of 38 protons, 50 neutrons, and 38 electrons. For a number to be classified as a prime number, it should have exactly two factors. " The best two day sales course that I have attended in my career. We have also distinguish between the possible and common oxidation states of every element. See all questions in Basic Atomic Structure. O 155 ), and 38 electrons (necessarily), and has generally 48, 49, or 50 neutrons depending on the isotope. by crazylilduck 31-10-2009 00:07, Post Direct link to Angel Mihail's post There is any better way t, Posted 7 years ago. At the upper left is the atomic number, or number of protons. " The class gave me a new, or refreshed, view of the sales process. Ken Haswell, Auto-Wares", What element has 38 protons and 58 neutrons? " Every aspect of the course was fine tuned and 100% related to what we deal with every day. Avery Young, Trail Appliances ", Strontium has 38 protons (necessarily! Write the chemical symbols for three different atoms or atomic cations with 3 electrons. atom. Symbol Free Gift for you: Interactive Periodic Table Let me tell you how this Interactive Periodic Table will help you in your studies. All leptons have an electric charge of \(-1\) or \(0\). A property closely related to an atom's mass number is its atomic mass. i.decs_text, protons .ec_product_added_to_cart a, .ec_cart_checkout_link{ color:#222222 !important; } How does Charle's law relate to breathing? (d) Chromium(III) sulfate " I came in not knowing what to expect and I was blown away. Tano Archuleta, Painter Supply Co.", Stronitium occurs in 5 natural isotopes: 84Sr, 86Sr, 87Sr, 88Sr, and 90Sr. 38. In fact, the number of protons determines what atom we are looking at (e.g., all atoms with six protons are carbon atoms); the number of protons in an atom is called the, A property closely related to an atoms mass number is its, Since an elements isotopes have different atomic masses, scientists may also determine the. Mark any/all that apply to phosphorus-32. Dreaming Of Pink Roses Meaning, Co Only strontium (Sr) atoms can have 38 protons. They are a type of fundamental particle called leptons. Suchen . Ferrocerium is a synthetic pyrophoric alloy that produces hot sparks that can reach temperatures of 3,000 C (5,430 F) when rapidly oxidized by the process of striking the rod, thereby fragmenting it and exposing those fragments to the oxygen in the air. Answers. 58.6934 atomic mass units: Number of Protons: 28: Number of Neutrons: 31: Number of Electrons: 28: Also asked, what has 32 protons and 38 neutrons? What element has 38 protons and 58 neutrons. " The course gives clear vision and a set plan to help attack and capture more business in current accounts and a way to be successful in building a new customer base. David Johnson", 58 .ec_show_two_column_only{ display:none !important; } Protons are a type of subatomic particle with a positive charge. .ec_product_type1 .ec_product_addtocart{ background-color:#222222; border-bottom-color:#666666; } 1, 2, 19, 38, it is not a prime number. { "4.1:_Cutting_Alumimun_until_you_get_Atoms" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "4.2:_Indivisible_-_The_Atomic_Theory" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "4.3:_The_Nuclear_Atom" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "4.4:_The_Properties_of_Protons_Neutrons_and_Electrons" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "4.5:_Elements:_Defined_by_Their_Number_of_Protons" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "4.6:_Looking_for_Patterns:_The_Periodic_Table" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "4.7:_Ions_-_Losing_and_Gaining_Electrons" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "4.8:_Isotopes_-_When_the_Number_of_Neutrons_Varies" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "4.9:_Atomic_Mass:_The_Average_Mass_of_an_Elements_Atoms" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, { "00:_Front_Matter" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "01:_The_Chemical_World" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "02:_Measurement_and_Problem_Solving" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "03:_Matter_and_Energy" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "04:_Atoms_and_Elements" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "05:_Molecules_and_Compounds" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "06:_Chemical_Composition" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "07:_Chemical_Reactions" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "08:_Quantities_in_Chemical_Reactions" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "09:_Electrons_in_Atoms_and_the_Periodic_Table" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "10:_Chemical_Bonding" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "11:_Gases" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "12:_Liquids_Solids_and_Intermolecular_Forces" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "13:_Solutions" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "14:_Acids_and_Bases" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "15:_Chemical_Equilibrium" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "16:_Oxidation_and_Reduction" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "17:_Radioactivity_and_Nuclear_Chemistry" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "zz:_Back_Matter" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, 4.4: The Properties of Protons, Neutrons, and Electrons, [ "article:topic", "atomic mass unit", "showtoc:yes", "license:ccbyncsa", "transcluded:yes", "source-chem-47470", "licenseversion:40" ], https://chem.libretexts.org/@app/auth/3/login?returnto=https%3A%2F%2Fchem.libretexts.org%2FCourses%2Fcan%2Fintro%2F04%253A_Atoms_and_Elements%2F4.4%253A_The_Properties_of_Protons_Neutrons_and_Electrons, \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}}}\) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash{#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\), 4.5: Elements: Defined by Their Number of Protons, status page at https://status.libretexts.org. var ajaxurl = "https://www.excelsalesconsulting.com/wp-admin/admin-ajax.php"; /*color*/#logo h1,#logo h1 a,.head_text h1,.head_text h2,.head_text h3,.head_text h4,.head_text h5,.head_text h6,.content a, .sidebar a, #footer .box.footer.widget a, .tweet_time a, .box .tweet_text a, .box .tweet_text a:hover, .widget_nav_menu ul li a:hover, .widget_categories ul li a:hover, .widget_meta ul li a:hover, .widget_recent_entries ul li a:hover, .widget_pages ul li a:hover, .widget_rss ul li a:hover,.widget_recent_comments ul li a:hover, .banner .featured_text a,.content h1 a:hover,.content h2 a:hover,.content h3 a:hover,.content h4 a:hover,.content h5 a:hover,.content h6 a:hover,.rt-toggle ol li.open .toggle-head,ul.tabs a.current, ul.tabs a.current:hover, ul.tabs a:hover, ul.tabs li.current a,a.read_more, a.read_more:hover,a.more-link,a.more-link:hover,.portfolio_sortables ul li.active a,body .tp-caption a{color:#153f94; }/*link hovers */#logo h1 a:hover,.box .tweet_text a:hover, h1 a:hover,h2 a:hover,h3 a:hover,h4 a:hover,h5 a:hover,h6 a:hover,.box .tweet_text a:hover, ul.tabs a.current:hover, ul.tabs a:hover,a.read_more:hover,a.more-link:hover{color:#153f94; opacity:0.8;filter:alpha(opacity=80);}/*background-color*/.icon-holder,.head_text .arrow,.box:hover > .image-border-bottom,#navigation ul,#navigation_bar > ul > li.current_page_item > a, #navigation_bar > ul > li.current_page_parent > a, #navigation_bar > ul > li.current-menu-ancestor > a , #navigation_bar > ul > li > a:hover, #navigation_bar > ul > li:hover > a,.flex-caption .desc-background,.flex-direction-nav li, .flex-direction-nav li a,.flex-control-nav li a,body .search-bar form input.searchsubmit,.paging li a:hover,.paging li a:hover, .paging li.active a,.post-navigations a,a.banner_button,a.banner_button:hover,.social_tip,.icon-overlay .icon,.blog_list .date ,.rt-toggle ol li .toggle-number,.mobile-date,body span.onsale,.theme-default .nivo-directionNav a ,.theme-default .nivo-caption .desc-background,.theme-default .nivo-directionNav a,body .tp-leftarrow.round, body .tp-rightarrow.round,body .tp-leftarrow.default, body .tp-rightarrow.default,body .tp-caption.r-theme-blue,body .tp-button.auto_color_button, body .tp-button.auto_color_button:hover, body .purchase.auto_color_button, body .purchase.auto_color_button:hover{background-color:#153f94;} ::selection{background-color:#153f94;} ::-moz-selection{background-color:#153f94;} /*border-color*/.logo-holder,ul.tabs a.current, ul.tabs a.current:hover, ul.tabs a:hover, ul.tabs li.current a ,blockquote p,blockquote.alignleft p,blockquote.alignright p{border-color:#153f94;}body,.banner .featured_text, Fill in the gaps in the following table, assuming each column. represents a neutral atom: Knowledge of theelectron configurationof different atoms is useful in understanding the structure of the periodic table of elements. Given,Ca2+2040Required,Numberofprotons,neutronsandelectrons, Q:What is the mass of 3.91 x 1024 sulfur atoms? I thought that can not be possible and if it does i guessed somehow in years the carbon can convert to some elements which has less proton numbers not opposite way. It should be noted that all of these decay pathways may be accompanied bythe subsequent emission ofgamma radiation. #ec_current_media_size{ max-width:1300px; } What are the units used for the ideal gas law? Anyone canbe able to come here,learn the basicsofmaterials science, material properties and to compare these properties. .ec_product_type1 .ec_product_quickview > input:hover{ background:#222222; background-color:#222222; } 81 235 DO B 7 E 2 X 2. w med Paragra This problem has been solved! Al 29 C. 38 D. 58 you can always identify an element by it's atomic number (number of protons) this would be Sr. this would be an isotope of Sr though. Stronium with 31 Protons and 37 Neutrons How many protons neutrons and electrons are in an atom of gallium? Carbon has six protons and now the mass is 14. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers. " A great guide to sales but also a great guide to how to live your life. Write the symbol for each of the following ions: (a) the ion with a 3+ charge, 28 electrons, and a mass number of 71. Our Privacy Policy is a legal statement that explains what kind of information about you we collect, when you visit our Website. 53 The number of neutrons can be different, even in atoms of the same element. 3. Strontium is in the second column of the periodic table which is Group 2(2A) ; the group number is written at the top of the column. #ec_current_media_size{ max-width:1139px; } Prior Incantato Meaning, Reply to this if you want me to explain why:) Could you explain how you got it though. Stronium with 31 Protons and 37 Neutrons How many protons and neutrons does Strontium 90 have? Q:How many protons and neutrons are in37Cl? [Xe] 6s2 for barium). Determine the number of protons and electrons in an atom. Well, I know where the symbols are from and I found them - but now I can't find a correlation between them which could lead to a 4th. {color:#808080;}.breadcrumb a #comments ol.commentlist li .comment-body .comment-author, #cancel-comment-reply-link, 31 .ec_category_li{ width:100%; } Many other rare types of decay, such as spontaneous fission or neutron emission are known. Li: Dies passt genau damit zusammen dass ein Proton aus zwei Quarks mit elektrischer Ladung +2/3 (genannt Up Quarks) und einem mit elektrischer Ladung -1/3 (genannt Down Quark) besteht und ein Neutron aus zwei Down Quarks und einem Up Quark. There are 38 positively charged particles in its nucleus. Continue with Recommended Cookies. .ec_product_page_sort > .ec_product_page_showing{ color:#222222; } " The class is very easy to relate to my own personal experiences & it makes it easy to see how to change for the better! Tyler Zacker King, Caruk and Associates", The periodic table is a chart that organizes elements by their atomic structure. An atom of an element in a compound will have a positive oxidation state if it has had electrons removed. Atomic nuclei consist of protons and neutrons, which attract each other throughthe nuclear force, while protons repel each other viathe electric forcedue to their positive charge. . It will keep me on track and make me plan better. Andrew Yulle", To find neutrons do Atomic mass-atomic number. Nickel-58 is composed of 28 protons, 30 neutrons, and 28 electrons. The number of electrons in an electrically-neutral atom is the same as the number of protons in the nucleus. Physikalische Beschreibung Also, how many electrons protons and neutrons are there in an atom of iron 56? Atoms of all elementsexcept for most atoms of hydrogenhave neutrons in their nucleus. Carbon-14 decaying to Nitrogen-14" - doesn't that mean it will have to 'gain' a proton in order to become Nitrogen? Direct link to Just Keith's post No. (a) Pick any one of the first 10 elements that you would like to build and state its symbol. Continue with Recommended Cookies. .tweet_time a, I presume you got the strontium atom, for which Z_{\text{the atomic number}}=38. A:Dear student I have given answer to your question in the image format. .ec_store_table a:hover{ color:#666666 !important; } Mass Number 81 /* ]]> */ Direct link to Davin V Jones's post A neutron decays into a p, Posted 7 years ago. Manage Settings .ec_account_dashboard_row_divider a, .ec_account_order_line_column5 a, .ec_account_complete_payment_button{ background-color:#222222 !important; } " Very informative even for the veterans in the class! John Henriques", It atomic mass is 87.62 g*mol^-1 . I think I do, but I would like some verification. .rss-date, width: 1em !important; 52, Q:Consider an ion: 123 X3+. and install it? Symbol Norm breaks it down and makes the possibilities endless. Cathy Catterson, Automotive Paint Specialties", .ec_category_li:nth-child( 2n+1 ){ clear:both; } .ec_cart_breadcrumb{ width:100%; text-align:center; font-size:22px; } [Xe] 6s2 for barium). vertical-align: -0.1em !important; Similarly, adding electrons results in a negative oxidation state. Red Spots In Washing Machine, B) 5.48 x 10-6, A:Mole is a standard unit for measuring large quantities of very small entities such as molecules., Q:Be sure to answer all parts. Element Symbol Ag .ec_product_type1 .ec_product_addtocart:hover{ background-color:#666666; border-bottom-color:#222222; } # Neutrons by JohnDoe 19-11-2009 18:09, Post 1 gives the properties and locations of electrons, protons, and neutrons. Direct link to Eric Bordner's post Well they actually aren't, Posted 5 years ago. by yojoe1221 16-06-2009 06:47, Post 43 .ec_category_li:nth-child( 2n+1 ){ clear:both; } Which element has 38 protons and 50 neutrons 7 What is its mass number 8 What. BWomack214 . One of the most stable types of potassium atoms has the mass number 39. by Akik0 18-07-2009 17:52, Post Why is the number of protons and electrons equal in an atom? (An atomic mass unit equals about \(1.67 \times 10^{-27}\) kilograms.) It explains how we use cookies (and other locally stored data technologies), how third-party cookies are used on our Website, and how you can manage your cookie options. For instance, you might have read about it in discussions of nuclear energy, the Fukushima reactor tragedy, or the development of nuclear weapons. We have been talking about the electron in great detail, but there are two other particles of interest to us: protons and neutrons. @Sean Collin: the amount of carbon isotopes can be determined for each geologic era by analyzing glaciers, because they imprison atmospheric gases. Enter the number of electrons in each energy level (shell) for each of the elements. 206pb .ec_category_li:nth-child( 2n+1 ){ clear:both; } Prime numbers greater than 5 can be represented in the form of either 6n + 1 or 6n - 1. Consuming 75% of production, the primary use for strontium was in glass for colour television cathode ray tubes. Symbol .ec_search_widget input[type="submit"]:hover, .ec_newsletter_widget input[type="submit"]:hover, input[type="submit"].ec_login_widget_button:hover{ background-color:#666666; border-bottom:4px solid #222222; } " I feel like my motivation to do the best I can has been re-established. Trevor Madry", A neutronis one of thesubatomic particlesthat make up matter. }, .ec_cart_success_continue_shopping_button > a{ background:#222222 !important; } Cerium-138 is composed of 58 protons, 80 neutrons, and 58 electrons. .ec_cart_right{ width:100%; padding-left:0px; }