Nuclei Ques 57
57. $\alpha$-particle consists of:
[2019]
(a) 2 protons and 2 neutrons only
(b) 2 electrons, 2 protons and 2 neutrons
(c) 2 electrons and 4 protons only
(d) 2 protons only
Show Answer
Answer:
Correct Answer: 57.(a)
Solution:
- (a) $\alpha$-particle is nucleus of helium $He^{++}$which has two protons and two neutrons.
BETA
