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Science TNSB Mentoring
Class 9
Atomic structure
Early models of the atom
3.
Discovery of subatomic particles
Question:
3
m.
1
.
The discovery of the neutron is made by
J. J. Thomson
James Chadwick
Niels Bohr
Eugen Goldstein
2
.
Choose the subatomic particle of the from the following.
Alpha particle
Positron
Proton
Positive electron
3
.
Proton has the charge of
\(-1\)
zero
\(+2\)
\(+1\)
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