Chemistry · Radioactivity
किस वैज्ञानिक ने पोलोनियम तत्व की खोज की थी?
- 1अर्नेस्ट रदरफोर्ड
- 2दिमित्री मेंडेलीव
- 3मैरी क्यूरी✓
- 4जोसेफ प्रीस्टली
सही उत्तर देखें
मैरी क्यूरी
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