Q. ₁₉K⁴º में इलेक्ट्रॉन की संख्या है

(A) 18
(B) 19
(C) 20
(D) 10

✅ Correct Answer: (B) 19

Published by Krishna Sharma ⭐ 48.52K Points at 17-Nov-2021 03:32 pm in Chemistry

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