Chemistry · Atomic Structure
किसी तत्व का परमाणु भार (Atomic weight) किसके सापेक्ष परिभाषित होता है?
- 1नाइट्रोजन-14
- 2हाइड्रोजन-1
- 3कार्बन-12✓
- 4ऑक्सीजन-16
सही उत्तर देखें
कार्बन-12
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