HARD
10th Kerala Board
IMPORTANT
Earn 100

Based on the hints given, find out the atomic number and write down the subshell electronic configuration of elements (Symbols used are not real).
i. A – period group
ii. B – period group

Important Questions on Periodic Table and Electronic Configuration
MEDIUM
10th Kerala Board
IMPORTANT
When the last electron of an atom was filled in the 3d subshell, the subshell electronic configuration was . Write the complete subshell electronic configuration of this atom.

MEDIUM
10th Kerala Board
IMPORTANT
When the last electron of an atom was filled in the 3d subshell, the subshell electronic configuration was . Write the atomic number of this atom.

MEDIUM
10th Kerala Board
IMPORTANT
When the last electron of an atom was filled in the 3d subshell, the sub-shell electronic configuration was . Write that the atom belongs to which block.

HARD
10th Kerala Board
IMPORTANT
When the last electron of an atom was filled in the 3d subshell, the sub-shell electronic configuration was . Write its period number.

MEDIUM
10th Kerala Board
IMPORTANT
When the last electron of an atom was filled in the 3d sub-shell, the subshell electronic configuration was . Write its group number.

MEDIUM
10th Kerala Board
IMPORTANT
Select out the wrong ones from the sub-shell electronic configuration given below.

HARD
10th Kerala Board
IMPORTANT
The element X in group has shells. If so, write the subshell electronic configuration of the element.

MEDIUM
10th Kerala Board
IMPORTANT
The element X in group has shells. If so, write the period number.
