Chemistry · Structure of the Atom

निम्नलिखित में से कौन से अपरमाणुक कण (subatomic particles) किसी परमाणु की द्रव्यमान संख्या (mass number) में योगदान करते हैं?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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प्रोटॉन और न्यूट्रॉन

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