The atomic number of lithium is 3.its mass number is 7.(a) how many protons and neutrons are present in the lithium atom?
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Answer:Name Lithium
Atomic Mass 6.941 atomic mass units
Number of Protons 3
Number of Neutrons 4
Number of Electrons 3
Explanation:Number of neutrons = Mass number - atomic number. Number of neutrons = 7-3=4. Number of protons = atomic number. Number of protons = 3 ..
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