Question

The general electronic configuration (n − 1) d3ns2 indicated that the particular elements
belong to the group.
a) VB
b) VA
C) IVB
d) II B
​

Answer 1

The general electronic configuration (n-1) d³ ns² indicated that the particular elements belong to the group.

• a) VB ✓
• b) VA
• c) IVB
• d)IIB

solution : electronic configuration of d -block is written as $(n-1)d^{1-10}ns^{1-2}$

and group of d-block = number of electrons in (n -1) d subshell + number of electrons in n s subshell.

given, electronic configuration is (n - 1)d³ ns² is similar to d-block.

so, we can definitely say that given general electronic configuration is related to d-block elements.

and group number = 3 + 2 = 5

hence, group number is V

here should use VB , because VA is used for nitrogen family (or p-block elements).

hence, option (a) is correct choice.

Answer 2

Answer:

option a is correct

Explanation:

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