Question

how many electrons in an atom with atomic number 30can have (n+1)=4?​

Answer 1

Answer:

the atom having 30 electron system is Zn

if (n+1) =4 then n = 3

then the number of electron is 18

Explanation:

hope this will help you

1s2 2s2 2p6 3s2 3p6 3d10 4s2

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