SSC SSC GD Constable 2025 Mock Test Series General Science Chemistry Structure of Atom

'ପରମାଣୁ' ଶବ୍ଦର ପ୍ରତିପାଦନ କିଏ ପ୍ରସ୍ତୁତ କରିଥିଲେ?

1
ଡେମୋକ୍ରିଟସ
2
ଥମସନ 
3
ଇ ରଦରଫୋର୍ଡ 
4
ଜନ ଡାଲଟନ
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