Which of the following factor does not affect the atomic size of d block elements?

Number of shielding electrons

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Number of protons in nucleus

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Number of neutrons in nucleus

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Electrostatic attraction between nucleus and outermost electrons.

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Solution

The correct option is C
Number of neutrons in nucleus

The electrostatic attraction between protons of nucleus and outermost electrons determine the atomic size and it is also affected by number of shielding electrons.

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Name the following :

(a) The element which does not contain any neutron m its nucleus.

(b) An element having valency 'zero'.

(d) Two atoms having the same number of protons and electrons but different number of neutrons.

(e) The shell closest to the nucleus of an atom.

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