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Sindrei [870]
3 years ago
14

If both the first and second shells of an atom are full, what is the total number of electrons present in that atom?

Chemistry
2 answers:
julsineya [31]3 years ago
8 0

Answer:

10 is the total number of electrons present in that atom.

Explanation:

The formula for total number of electron in nth shell is given by :2n^2

First shell = 1

Number of electron in first shell,n = 1:

= 2(1)^2= 2

Number of electron in first shell,n = 2:

= 2(2)^2= 8

Total number of electrons in the atom with full first shell and second shell:

2 + 8 = 10

Alexus [3.1K]3 years ago
5 0

Answer:

10

Explanation:

the capacity for each shell for the first 20 elements can be given by

2.8.8.2

2 electrons in the first shell

8 in the 2nd and in the 3rd

and 2 in the 4th

so if both the first and 2nd shells are full,

2+8=10 electrons

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