Chemistry · Basic Concepts of Chemistry
वर्तमान परमाणु भार पैमाना किस मानक समस्थानिक (आइसोटोप) पर आधारित है?
- 1O-16
- 2C-13
- 3H-1
- 4C-12✓
सही उत्तर देखें
C-12
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