Chemistry, asked by sv1754589, 7 months ago

(8) If a cation x3+ has 18 electron, the atomic number of element ‘X’ will be

(1) 15 (2) 21

(3) 12 (4) 24

Answers

Answered by swethaakhil221

0

Answer:

21

Explanation:

3 of its electron is gone so 21-3=18

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