Question

How many electrons are there in the third shell (principal energy level) of the atom with atomic number 23?

Answer 1

$the \: number \: of \: electrons \: in \: {3}^{rd \:} shell \: = 13$

mark it as brainliest

Answer 2

There are 13 electrons present in the third shell (principal energy level) of the atom with atomic number 23.

Explanation:

Number of shells present in an element are K, L, M, N and so on.

An element with atomic number 23 will have electronic distribution as 2, 8, 8, 2, 3. So, for each element K shell can hold up to 2 elements, L shell can hold up to 8, M shell can hold up to 18 electrons and N shell can hold up to 32 electrons.

As M shell is the third shell of this atom and there are 13 electrons present in it.

Learn more about principal energy level:

https://brainly.in/question/432698

https://brainly.in/question/9760394

#Learnwithbrainly