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
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
