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Subjects
Science CBSE
Class 9
Structure of the atom
Discovery and structural models of atomic particles
2.
Discovery of subatomic particles
Exercise condition:
3
m.
1
.
The discovery of the proton is made by
James Chadwick
J. J. Thomson
Niels Bohr
Eugen Goldstein
2
.
Select the subatomic particle of the from the following.
Electron
Positron
Positive electron
Alpha particle
3
.
Neutron has the charge of
\(+1\)
\(-1\)
\(+2\)
\(0\)
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