Question

who discovered atom, mole,nucleus of atom and radioactivity?​

Answer 1

$\huge\boxed{\fcolorbox{cyan}{Red}{Radhe Radhe !!}}$

Nuclear physics began on 1 March 1896 with the discovery of radioactivity by Henri Becquerel. Becquerel discovered that uranium salts (such as K2UO2 (SO4)2 2H2O) generated black tracks on photographic plates.

Answer 2

Answer:

Explanation:atom is discovered by dalton

Mole is discovered by avagadro

Nucleus is discovered by Chadwick