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Effkay · Answer 1 · 2023-08-12T23:10:19+0000

Answer:

a lithium atom (Z=3, A=7 AMU) contains three protons (found from Z), three electrons (as the number of protons is equal to the number of electrons in an atom), and four neutrons (7 – 3 = 4).

Step-by-step explanation:

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