1 4.8: Isotopes – When the Number of Neutrons Varies
- Author: chem.libretexts.org
- Published Date: 03/15/2022
- Review: 4.99 (979 vote)
- Summary: · Notice that because the lithium atom always has 3 protons, the atomic number for lithium is always 3. The mass number, however, is 6 in the
- Matching search results: For most elements other than hydrogen, isotopes are named for their mass number. For example, carbon atoms with the usual 6 neutrons have a mass number of 12 (6 protons + 6 neutrons = 12), so they are called carbon-12. Carbon atoms with 7 neutrons have an
- Source: https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Map%253A_Introductory_Chemistry_(Tro)/04%253A_Atoms_and_Elements/4.08%253A_Isotopes_-_When_the_Number_of_Neutrons_Varies
2 SOLVED: What is the mass number of the isotope lithium-7? Lithium has 3 protons. How many neutrons are in the isotope lithium-8?
- Author: numerade.com
- Published Date: 10/23/2021
- Review: 4.9 (775 vote)
- Summary: The isotope lithium-7 has a mass of 7.0160 atomic mass units, and the isotope lithium-6 has a mass of 6.0151 atomic mass units
- Matching search results: Okay, so the isotope lithium seven has a mass of 7.160. And the isotope lithium six has a mass of 6.151. So we want to know um We know that 92.58% of the lithium um found in nature is lithium seven and 7.42% of it is lithium six. So we want to calculate
- Source: https://www.numerade.com/ask/question/what-is-the-mass-number-of-the-isotope-lithium-7-lithium-has-3-protons-how-many-neutrons-are-in-the-isotope-lithium-8-16525/
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what is the mass number of the isotope lithium 7
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- vào Tháng Mười 5, 2022
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