Question

The electronic configuration of an atom is 2,8,1. Which of the following is chemically similar to this?​

Answer 1

Answer:

the element is sodium.

with atomic no. 11

Answer 2

Question - The electronic configuration of an atom is 2,8,1. Which of the following is chemically similar to this?

a. K

b. Ca

c. P

d. Ar

Answer - The similar atom is a. K

The potassium or K has electronic configuration 2,8,8,1. It is chemically similar to potassium as they belong to group 1 of periodic table. They are characterized by same number of electrons in their outermost shell.

Down the group only shells increases. They are all alkali metals. The elements of this group are soft and reactive in nature. Being metals, they conductor of heat and electricity.