Chemistry · Nuclear Chemistry
अल्फा कण में क्या होते हैं?
- 11 प्रोटॉन व 1 न्यूट्रॉन
- 22 प्रोटॉन व 4 न्यूट्रॉन
- 31 प्रोटॉन व 4 इलेक्ट्रॉन
- 42 प्रोटॉन व 2 न्यूट्रॉन✓
सही उत्तर देखें
2 प्रोटॉन व 2 न्यूट्रॉन
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