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Q.

If both the K and L shells are full, what would be the atomic number of that element?

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a

16

b

10

c

14

d

20

answer is C.

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Detailed Solution

K shell holds 2 electrons and L shell holds 8 electrons so it both are completely filled then the number of electron =2+8=10 and this element is Neon.

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If both the K and L shells are full, what would be the atomic number of that element?