Isotopes are separated by
A. crystallisation
B. sublimation
C. distillation
D. filtration
In an atomic explosion, enormous energy is released which is due to
A. conversion of chemical energy into heat energy
B. conversion of mechanical energy into nuclear energy
C. conversion of mass into energy
D. conversion of neutrons into protons
Which among the following is a positively charged particle emitted by a radioactive element?
A. Beta ray
B. Alpha ray
C. Cathode ray
D. Gamma ray
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