Q. 175.0( 2 Votes )

Which of the following statement is always correct?
A. An atom has equal number of electrons and protons.

B. An atom has equal number of electrons and neutrons.

C. An atom has equal number of protons and neutrons.

D. An atom has equal number of electrons, protons and neutrons.

Answer :

An atom as a whole is neutral. It is neither positive nor negative. The number of electrons are always equal to the number of protons. The mass of the atom is the sum of the masses of protons and neutrons.

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