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Question
Physics
α-particle consists of:
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Q. $\alpha$-particle consists of:
NEET
NEET 2019
Atoms
A
2electrons and 4 protons only
12%
B
2 protons only
18%
C
2 protons and 2 neutrons only
47%
D
2 electrons, 2 protons and 2 neutrons
23%
Solution:
$\alpha $ - particle is nucleus of Helium which has two protons and two neutrons.