Question

what is the term given to the pair of elements argon and calcium? Write the electronic configuration of both the elements. Which of the two is chemically unreactive ?why? what are the isotopes of hydrogen? How do they vary from each other​

Answer 1

Answer:

argon is a noble gas and calcium is an alkaline earth metal

Explanation:

electronic config of argon -2,8,8

electronic config of calcium-2,8,8,2

Argon is chemically unreactive because it is a noble gas. it's outermost shell is completely filled thus the exchange of electrons doesn't take place. so it's chemically unreactive.

the isotopes of hydrogen are protium, deuterium and tritium.

hope this helps you