Question

what is the electronic configuration of helium?​

Answer 1

Helium only has 2 electrons and therefore it has a configuration of 1s2. Because the 1s orbital is full with 2 electrons and any additional electrons would go in a new energy level. The electron configuration for Helium shows a full outer shell and is Helium is therefore called a Nobel Gas. This means it will not react with other atoms.

Answer 2

Answer:

Electronic configuration of helium:-

Total no. of electron-> 2

1st shell-> 2(complete octate).

So, it is a noble gas.

Explanation:

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