किस तत्व के सर्वाधिक समस्थ – McqOptions

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1.	किस तत्व के सर्वाधिक समस्थानिक होते है ?
A.	यूरेनियम
B.	रेडियम
C.	हाइड्रोजन
D.	पोलोनियम
Answer» C. हाइड्रोजन

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