Why Helium is in the group number 18????
Answers
Answered by
2
Answer:
it is nobel gas and all the nobel gas follows the octet or nobel gases are stalbe in nature
Answered by
3
Explanation:
It is because in that group all the valency shell are completely filled like helium , neon, argon.....etc.Their innertness means having to be in always stable form because they are always stable, not reacting with anyone
due to this Neil Bohr making periodic table kept them in group 8
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