Atomic Structure Multiple Choice Questions(MCQs) with Answers | Atomic Structure Objective Questions
Questions
1
Why has nuclear energy become an inevitable option for the development of the country?
Answer: Due to acute shortage of other sources of energy
2
How much amount of nuclear energy burnt is equivalent to the energy produced by 3000 tonnes of coal?
Answer: 1kg
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3
What is the most attractive part of nuclear energy?
Answer: Causes no pollution
8
The total number of nucleons in the nucleus is called _________
Answer: Mass number
9
To disrupt a nucleus and separate in into its component nucleons, energy must be supplied from outside and this energy is called?
Answer: Binding energy
10
The net neutrons produced per initial neutron accounting for all possible losses is called?
Answer: Multiplication factors
11
What is the time during which one half of a number of radioactive species decays or one half of their activity ceases?
Answer: Half Life
12
Electrons that orbit outermost shell of an atom are called?
Answer: Valence electrons
14
Which of the following statements is not true with respect to photoelectric effect -
Answer: The plot of kinetic energy of the photoelectrons against frequency of absorbed radiation gives a straight line parallel to x-axis
16
An atom has a mass number of 37 and atomic number 17. How many protons does it have?
Answer: 17
17
Which of the following mostly accounts for the mass of an atom?
Answer: Neutron and proton
18
Which metal was used by Rutherford in his alpha-scattering experiment?
Answer: Gold
20
Which isotope of hydrogen contains only one proton and no neutron in its nucleus?
Answer: Protium
