alleryमारी आनी पिएरे क्युरी हांणी खंयचे दोन किरणोत्सर्गी घटक सोदून काडले?
Aयुरेनियम आनी थोरियम
Bपोलोनियम आनी रेडियम
Cक्युरियम आनी फ्रांसियम
Dकोबाल्ट आनी सीझियम
Answer & Solution
Correct answer: B. पोलोनियम आनी रेडियम
मारी आनी पिएरे क्युरी हांणी 1898 त पोलोनियम आनी रेडियम हीं रसायनीक मूलद्रव्यां सोदून काडलीं.
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