Q. सोडियम परमाणु में कोर इलेक्ट्रॉन की संख्या है ?

(A) 3
(B) 7
(C) 9
(D) 10

✅ Correct Answer: (D) 10

Published by Ranjeet ⭐ 34.60K Points at 26-May-2024 08:46 am in Chemistry

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