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तत्व A, B और C डॉबरेनीर ले ट्रायड्‌स के यप में व्यवस्थित हैं। यदि A का परमाणु द्रव्यमान 7 और B का 39 है, तो C का परमाणु द्रव्यमान कितना होगा ?

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तत्व A, B और C डॉबरेनीर ले ट्रायड्‌स के यप में व्यवस्थित हैं। यदि A का परमाणु द्रव्यमान 7 और B का 39 है, तो C का परमाणु द्रव्यमान कितना होगा ?






 
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