The wrong statement regarding transition metals among the following is : (1) 4 s electrons penet...

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The wrong statement regarding transition metals among the following is :
(1) 4 s electrons penetrate towards the nucleus more
\( \mathrm{P} \) than \( 3 \mathrm{~d} \) electrons

W
(2) atomic radii of transition metals increase rapidly with increase in atomic number because of poor shielding of nuclear attraction by \( (\mathrm{n}-1) \) d electrons
(3) second and third transition series elements have nearly the same size
(4) their densities are higher and densities of the \( 5 \mathrm{~d} \) series elements are higher than those of \( 4 \mathrm{~d} \) series elements.
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