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Chemistry - 9 Chapter - 3
Atomic Structure
Test - 7
1.
Neutrons have a unit mass but carry ______.
a) Negative Charge
b) Positive Charge
c) No charge
2.
The mass of a Neutron is ________ amu.
a) 1.602x10
-19
b) 1.00836
c) 0.000548
d) 1.00782
3.
The mass of a proton is _________ amu.
a) 6.022x10
23
b) 1.00836
c) 1.0082
d) 0.000548
4.
The mass of electron is ________ amu.
a) 6.022x10
23
b) 1.00836
c) 1.0082
d) 0.000548
5.
Neutron is heaviest, proton is heavier and the electron is lightest.
a) True
b) False
6.
In an atom Neutrons = Protons + Electrons.
a) True
b) False
7.
In the atom there are also some particles other than fundamental particles.
a) True
b) False
8.
In Rutherfords experiment when majority particles passed through gold foil indicated that __________.
a) Two answers are correct
b) Most of the space occupied by an atom is empty.
c) Protons also passed through
d) Atom has a nucleus
9.
In Rutherfords experiment, the particle which did not pass through gold foil was named as_______.
a) Proton
b) Election
c) Neutron
d) Nucleus
10.
An atom is a ________ particle.
a) Neutral
b) Positively charged
c) Negatively charged
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