Question

Which of the following statements are correctly matched?

• A. $d$-block element : electronic configuration is $n{s}^{1-2}(n-1)d^{1-10}$
• B. $p$-block element : electronic configuration is $n{s}^{1-2}n{d}^{1-6}$
• C. $s$-block element : electronic configuration is $n{s}^{1-2}$
• D. $Ce$: $f$-block's first member

Answer 1

Answer: (A), (C)

The correct options are
A $d$-block element : electronic configuration is $n{s}^{1-2}(n-1)d^{1-10}$
C $s$-block element : electronic configuration is $n{s}^{1-2}$

The electronic configuration of $d$-block element is $n{s}^{1-2}(n-1)d^{1-10}$

The electronic configuration of $p$-block element is $n{s}^{2}n{p}^{1-6}$

The electronic configuration of $s$ block element is $n{s}^{1-2}$

So, the correct options are $A$ and $C$