1. The maximum sum of the no. of neutrons
& protons in an isotope of hydrogen is
a) 6 b)
5 c) 4 d) 3
2. An electron jumps from lower orbit to higher
orbit, when
a) energy is released
b) there is no charge in energy
c) energy is absorbed
d) it
radiates energy
3. Penetration power of proton is
a) greater than e b) less than e c) greater than n d)
none
4. The two electrons occupying the same orbital
are distinguished by
a) principal quantum number b) azimuthal quantum
no.
c) magnetic quantum no. d) spin quantum
no.
5. There is no difference between a 2p and 3p
orbital regarding
a) shape b) size c)
energy d) vale of n
Answers:
1. d
2. c
3. a
4. d
5. a
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