Neutrons were discovered by:
Which subatomic particle was discovered by: (i) Chadwick? (ii) Thomson? (iii) Goldstein?
Which sub-atomic particle was discovered by
(a) Thomson (b) Goldstein (c) Chadwick.
The subatomic particle called electron was discovered by :
(b) Neils Bohr
(c) James Chadwick
(d) E. Goldstein