Question
Which among the following electronic configurations belong to main group elements?
A. $\lbrack Ne\rbrack 3{\text{ }s}^{1}$
B. $\ \lbrack Ar\rbrack 3d^{3}4s^{2}$
C. $\ \lbrack Kr\rbrack 4d^{10}5s^{2}5p^{5}$
D. $\lbrack Ar\rbrack 3{\text{ }d}^{10}4{\text{ }s}^{1}$
E. $\lbrack Rn\rbrack 5f^{0}6d^{2}7s^{2}$
Choose the correct answer from the option given below:
Options
Solution
Sol. [Key Concept: Electronic configurations belonging to main-group elements]
A. $\lbrack Ne\rbrack 3{\text{ }s}^{1}$; $\ Na$ (s-block)
B. $\lbrack Ar\rbrack 3{\text{ }d}^{3}4{\text{ }s}^{2};\ V(d$-block $)$
C. $\lbrack Kr\rbrack 4{\text{ }d}^{10}5{\text{ }s}^{2}5p^{5};1$ (p-block)
D. $\lbrack Ar\rbrack 3{\text{ }d}^{10}4{\text{ }s}^{1};\ Cu(d$-block $)$
E. $\lbrack Rn\rbrack 5f^{0}6{\text{ }d}^{2}7{\text{ }s}^{2}$; Th (f-block)
Main group elements (A and C only)
Create a free account to view solution
View Solution Free