If an element has 7 electrons how many of them will be in the 2nd energy level

2 answers:

8 0

Well first you can not go to the 2nd energy level without the first so the first takes up 2 electrons leaving you 5 electrons and the recommended amount is 8 electrons so you would have 5 electrons left

AveGali [126]4 years ago

7 0

Answer:There are 5 electrons present in the second energy level.

Explanation:

The electronic configuration an element with 7 electrons is give as:

$[X]=1s^22s^22p^3$

Second energy level means that the second principle quantum number.

There are 2 electrons in first energy level and 5 electrons present in the second energy level.

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