An atom of lithium has 3 protons. how many electrons must be circling the atom if it has a net charge of 0?

total number of electrons required = 3

Explanation:

Lithium atom has 3 protons inside its nucleus

so the net positive charge on atom is due to these 3 protons

so in order to make it neutral we need same amount of negative charge on it so that net charge becomes zero on an atom of lithium

So we need 3 electrons on atom of nucleus as we know that

charge of proton = +e

charge of electron = -e

so we will have

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explanation: