The atomic numbers of Ni and Cu are 28 and 29 respectively. The electron configuration Is2 2s2 2p6 3s2 3p6 3d10 represents

Question

The atomic numbers of Ni and Cu are 28 and 29 respectively. The electron configuration Is2 2s2 2p6 3s2 3p6 3d10 represents (A) Cu+ (B) Cu2+ (C) Ni2+ (D) Ni

Tardigrade Admin · Accepted Answer

Electronic configuration of 28Ni = 1s2, 2s2 2p6, 3s2 3p6 3d8, 4s2 Ni2+ = 1s2, 2s2 2p6, 3s2 3p6 3d8, 4s0 29Cu = 1s2 , 2s2 2p6 ,3s2 3p63d10 , 4s1 Cu+ = Is2, 2s2 2p6, 3s2 3p6 3d10, 4s0 So, the given configuration is of Cu+

Q. The atomic numbers of $N i$ and $C u$ are $28$ and $29$ respectively. The electron configuration $I s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{10}$ represents

$C u^{+}$

$C u^{2 +}$

$N i^{2 +}$

$N i$

Q. The atomic numbers of Ni and Cu are 28 and 29 respectively. The electron configuration Is22s22p63s23p63d10 represents

Cu+

Cu2+

Ni2+

Ni

Electronic configuration of 28​Ni=1s2,2s22p6,3s23p63d8,4s2 Ni2+=1s2,2s22p6,3s23p63d8,4s0 29​Cu=1s2,2s22p6,3s23p63d10,4s1 Cu+=Is2,2s22p6,3s23p63d10,4s0 So, the given configuration is of Cu+

Q. The atomic numbers of $N i$ and $C u$ are $28$ and $29$ respectively. The electron configuration $I s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{10}$ represents

$C u^{+}$

$C u^{2 +}$

$N i^{2 +}$

$N i$