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

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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

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

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

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

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

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

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

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

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

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

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

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Element	Electronic configuration
${}_{27}{Co}$	${}_{18}{[Ar]} 3 d^{7} 4 s^{2}$
${}_{28}{Ni}$	${}_{18}{[Ar]} 3 d^{8} 4 s^{2}$
${}_{26}{Fe}$	${}_{18}{[Ar]} 3 d^{6} 4 s^{2}$
${}_{24}{Cr}$	${}_{18}{[Ar]} 3 d^{5} 4 s^{1}$
${}_{46}{Pd}$	${}_{36}{[Kr]} 4 d^{10} 5 s^{0}$
${}_{29}{Cu}$	${}_{18}{[Ar]} 3 d^{10} 4 s^{1}$
${}_{30}{Zn}$	${}_{18}{[Ar]} 3 d^{10} 4 s^{2}$
${}_{48}{Cd}$	${}_{36}{[Kr]} 4 d^{10} 5 s^{2}$
${}_{47}{Ag}$	${}_{36}{[Kr]} 4 d^{10} 5 s^{1}$

Solution

Q. Choose the correct option having all the elements with d10 electronic configuration from the following: [2024]

1 Co27, Ni28, Fe26, Cr24

2 Cu29, Zn30, Cd48, Ag47

3 Pd46, Ni28, Fe26, Cr24

4 Ni28, Cr24, Fe26, Cu29

Ans. (2) Element Electronic configuration Co27 [Ar]183d74s2 Ni28 [Ar]183d84s2 Fe26 [Ar]183d64s2 Cr24 [Ar]183d54s1 Pd46 [Kr]364d105s0 Cu29 [Ar]183d104s1 Zn30 [Ar]183d104s2 Cd48 [Kr]364d105s2 Ag47 [Kr]364d105s1

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