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timurjin [86]
3 years ago
13

Plz help ......Na+ has completely filled k and L shells . explain​

Chemistry
1 answer:
inessss [21]3 years ago
5 0

Explanation:

Na represents the neutral element; Sodium. Because of it's atomic number of 11, It has 11 electrons.

Na+ on the other hand represents a cation. The sodium ion has lost an electron, hence the total number of electrons it has = 10.

The K and L shells each have maximum number of electrons they can accommodate. This is given by the formular; 2n^2

K shell = 2 (1)^2 = 2 electrons

L shell = 2 (2)^2 = 8 electrons

Seeing as Na+ has 10 electrons, It completely filled the K and L shells ( 2 + 8 = 10 )

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