Question

→ Write down the outermost subshell electronic configuration of the element coming just below it in the same group?​

Answer 1

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“The ground state outer electronic configuration of an element is 3s²3p³.”

Supposing that this element obeys Madelung rule, its position in the Periodic Table is easily deduced from the ground state electronic configuration. The last filled shell is 3, thus the element is located in the third period (third row from top to bottom). The p block of Periodic Table begins at the group 13 and ends at group 18. The 3p orbital is filled with three electrons, thus this element is the third of the p block, i.e. it is located at group 15.

The element is placed at group 15 of third period of Periodic Table, where phosphorus sits.

Answer 2

Answer:

Which is the outermost subshell?

The element belonging to a particular block has the outermost electron in that particular subshell. For example in case of s block elements, the outermost electrons will occupy s subshell. Elements in p block will have its outermost electrons in p subshell.