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04-03-2021
Social Studies

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What is the name of the following atoms? An atom with 3 protons and 4 neutrons: *
an atom with 3 protons and 4 neutrons

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04-03-2021

Answer:

A lithium atom contains 3 protons in its nucleus. Notice that because the lithium atom always has 3 protons, the atomic number for lithium is always Z = 3. The mass number, however, is A = 6 for the isotope with 3 neutrons, and A = 7 for the isotope with 4 neutrons.

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