Question

how many electrons are in a atom if the element with the atomic number 24

Answer 1

Here's your answer ✌....

24-(1s2)=22

22-(2s2)=20

20-(2p6)=14

14=3s2 +3p6+4s1+3d5

therefore no of electron in 3 (k) shell =13

so answer is 13

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