Atoms as a whole are neutral because -
(A) the number of electrons is equal to the number of neutrons
(B) the number of electrons is equal to the number of protons.
(C) the number of neutrons is equal to the number of protons.
(D) the number of electrons is equal to the sum of the number of protons and the number of neutrons.
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The correct answer is (B)
EXPLANATION.
In natural state the atom will always maintain its neutrality.
electrons are negatively charged , protons are positively charged so to maintain neutrality they must be equal in number
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