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Chemistry 11 Chapter 5
Atomic Structure
Test 9
1.
When Neutrons travel with less energy than of 1.2Mev, then they are called?
a) None of these
b) Slow Neutrons
c) Neutrino
d) Fast Neutrons
2.
The mass of electron is?
a) 5.4855 x 10
-4
b) 9.1095 x 10
-31
c) 1.6726 x 10
-27
d) 1.6750 x 10
-27
e) 1.602 x 10
-19
3.
The velocity of droplet depends upon its?
a) None of these
b) Weight
c) Mass
d) Tension
4.
When Neutrons travel with an energy of 1.2Mev, then they are called?
a) Neutrino
b) Fast Neutrons
c) None of these
d) Slow Neutrons
5.
The charge on electron?
a) 1.6750 x 10
-27
b) 1.602 x 10
-19
c) 5.4855 x 10
-4
d) 9.1095 x 10
-31
e) 1.6726 x 10
-27
6.
A fast neutron ejects ______ element from the neucleus of nitrogen atom?
a) Barium
b) Boron
c) Hydrogen
d) Carbon
7.
Slow neutrons are ________ than fast neutrons?
a) Weaker
b) More effective
c) Less effective
d) Stronger
8.
A fast neutron ejects an______ particles from the neucleus of nitrogen atom?
a) Beta
b) Alpha
c) Gamma
d) None of these
9.
When slow moving neutrons hit Cu metal then _______ radiation are emmited?
a) Alpha
b) Gamma
c) None of these
d) Beta
10.
______ used in treatment of cancer?
a) None of these
b) 65/29 Cu
c) 66/29 Cu
d) 66/30 Zn
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