Q. ₁₉K⁴º में इलेक्ट्रॉन की संख्या है ?

(A) 15
(B) 17
(C) 19
(D) 23

✅ Correct Answer: (C) 19

Published by Admin ⭐ 38.37K Points at 26-May-2024 08:47 am in Chemistry

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