Question

The element ‘X’ has 4 shells and its 3d subshell has 6 electrons. (Symbol is not real) 

a. Write the complete electronic configuration of the element. 

b. What is its group number? Which is the block?

c. Write any two characteristics of the block to which element X belongs to. 

d. From which sub shell the electrons are lost when the element X shows +2 oxidation state.

Answer 1

a. 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁶ 4s²

b. Group number – 8, Block – d 

c. All of them are metals d – block elements are placed in group 3 to group 12 

d. s – Sub shell