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Krishna Sharma • 46.84K Points
Coach Chemistry
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Q. परमाण्विक संख्या Z और द्रव्यमान संख्या A के परमाणु में इलेक्ट्रॉनकी संख्या है

(A) Z
(B) A -Z
(C) A
(D) Z-A
Correct Answer - Option (A)

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