When the difference between mass number and atomic number of atoms of two or more elements are same, the atoms are termed as
A. Isomers
B. Isotopes
C. Isobars
D. Isotones
Answer: Option D
A. Isomers
B. Isotopes
C. Isobars
D. Isotones
Answer: Option D
Heavy water (D2O) in a nuclear reactor serves as a
A. Coolant
B. Moderator
C. Both A & B
D. Neutron absorber
Moderating material used in a thermal-reactor should be a
A. Good absorber of neutrons
B. Solid substance
C. Poor absorber of neutrons
D. None of these
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