Add New Description

Fill up the form and submit

কোন মৌলসমূহ পরস্পরের আইসোটোন ?

{}_{1}^{1}H, {}_{1}^{2}H, {}_{2}^{3}H

{}_{41}^{30}S I, {}_{14}^{31}P, {}_{14}^{32}S

{}_{29}^{64}C u, {}_{30}^{64}Z n

None of these

ANS : 4

Descrption

To add a description please, login first. click here to login

Cancel Login