Answers

2015-10-21T13:03:35+05:30
He is one of the best scientistits who contributed to the periodic table
he invented almost 80-90% of alkali and alkline earth metals and also gave names to them.He wrote some important theories of chlorine and iodine and by reading it,we can find those element's uses
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2015-10-21T14:19:43+05:30
He is the one of the grt scientist

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