alleryमेरी आणि पियरे क्युरी यांनी कोणत्या दोन किरणोत्सर्गी मूलद्रव्यांचा शोध लावला?
Aयुरेनियम आणि थोरियम
Bपोलोनियम आणि रेडियम
Cक्युरीयम आणि फ्रान्सियम
Dकोबाल्ट आणि सिझियम
Answer & Solution
Correct answer: B. पोलोनियम आणि रेडियम
मेरी आणि पियरे क्युरी यांनी 1898 मध्ये पोलोनियम आणि रेडियम या रासायनिक मूलद्रव्यांचा शोध लावला.
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