jenni8899 jenni8899

29-12-2018
Chemistry

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What is the atomic number for lithium-6?

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nap14hockey nap14hockey

29-12-2018

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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fiyona075 fiyona075

30-12-2018

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.

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