Get Answers to all your Questions

header-bg qa

Q.4.    (b)   Helium is an unreactive gas and neon is a gas of extremely low reactivity. What, if anything, do their atoms have in common?

Answers (1)

best_answer

Both Helium and Neon are noble gases which belong to the zero groups in the modern periodic table. They have fully filled the outermost shell with electrons.

Helium has two electrons in its K shell whereas Neon has 8 electrons in its outermost shell.

Posted by

Divya Prakash Singh

View full answer