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Atomic Number

Question 17 W...

Question

Question 17
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

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Solution

The answer is (a).
Atom is electrically neutral. It is possible only if an atom has equal number of protons and electrons.

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Q. Which of the following statement is always correct?

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