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10 Important Chemistry Questions/Answers Part 1
Amit Thatey
The heaviest metal is - Osmium (Os).सबसे भारी धातु है – ऑस्मियम (Os)The lightest metal is lithium (Li).सबसे हल्की धातु है – लिथियम (Li)The lightest element is hydrogen.सबसे हल्का ...
Published: 20 Nov 2019
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