Q.
Which block of the periodic table contains elements with the general electronic configuration
$(n - 2) \, f^{1 - 14}\,(n - 1)\,d^{0 - 1} \, ns^2$ ?
Classification of Elements and Periodicity in Properties
Solution:
block
general electronic configuration
$s$
$ns^{1-2}$
$p$
$ns^2 np^{1-6}$
$d$
$(n-1)d^{1-10}ns^{1-2}$
$f$
$(n-2)f^{1-14}(n-1)^{0-1}ns^2$
| block | general electronic configuration |
| $s$ | $ns^{1-2}$ |
| $p$ | $ns^2 np^{1-6}$ |
| $d$ | $(n-1)d^{1-10}ns^{1-2}$ |
| $f$ | $(n-2)f^{1-14}(n-1)^{0-1}ns^2$ |