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zysi [14]
3 years ago
14

What is the atomic number for lithium-6?

Chemistry
2 answers:
Yuri [45]3 years ago
4 0
A lithium atom contains 3 protons in its nucleus irrespective of the number of neutrons or electrons. 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 isotope with 3 neutrons, and 7 in the isotope with 4 neutrons.
Goryan [66]3 years ago
3 0

The atomic number of all isotopes of lithium is 3.  The isotope doesn't matter because an isotope contains the same protons.  All isotopes of a given element share the same atomic number

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