75% of a radioactive element decays in 6 hours. Its half life period is ______________ hours?

Related Mcqs:

In nuclear reactions, ______________ number is conserved?

A. Mass B. Atomic C. Both A. & B. D. Neither A. nor B....

Heavy water has maximum density at ______________ °C ?

A. 4 B. 11.6 C. 0 D. 18.6...

The radioisotope used to study the thyroid gland is__________________?

A. Iodine B. Cobalt C. Iron D. Carbon...

Fast breeder reactors do not____________________?

A. Use Th-232 as fissile fuel B. Convert fertile material to fissile material C. Use fast neutrons for fission D. Use molten sodium as coolant...

Isotopes of an element have different_________________?

A. Mass number B. Electronic configuration C. Nuclear charge D. Chemical properties...