Choose the correct option having all the elements with electronic configuration from the following:

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Solution

Q.
Choose the correct option having all the elements with $d^{10}$ electronic configuration from the following: [2024]

1 ${}^{27}{Co}, {}^{28}{Ni}, {}^{26}{Fe}, {}^{24}{Cr}$

2 ${}^{29}{Cu}, {}^{30}{Zn}, {}^{48}{Cd}, {}^{47}{Ag}$

3 ${}^{46}{Pd}, {}^{28}{Ni}, {}^{26}{Fe}, {}^{24}{Cr}$

4 ${}^{28}{Ni}, {}^{24}{Cr}, {}^{26}{Fe}, {}^{29}{Cu}$

Ans.
(2)

Element Electronic configuration

${}_{27}{Co}$ ${}_{18}{[Ar]} 3 d^{7} 4 s^{2}$

${}_{28}{Ni}$ ${}_{18}{[Ar]} 3 d^{8} 4 s^{2}$

${}_{26}{Fe}$ ${}_{18}{[Ar]} 3 d^{6} 4 s^{2}$

${}_{24}{Cr}$ ${}_{18}{[Ar]} 3 d^{5} 4 s^{1}$

${}_{46}{Pd}$ ${}_{36}{[Kr]} 4 d^{10} 5 s^{0}$

${}_{29}{Cu}$ ${}_{18}{[Ar]} 3 d^{10} 4 s^{1}$

${}_{30}{Zn}$ ${}_{18}{[Ar]} 3 d^{10} 4 s^{2}$

${}_{48}{Cd}$ ${}_{36}{[Kr]} 4 d^{10} 5 s^{2}$

${}_{47}{Ag}$ ${}_{36}{[Kr]} 4 d^{10} 5 s^{1}$

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