Uranium-238 have ………. neutrons.
a)143
b) 138
c) 142
d) 146
Estimation of the age of the plants and animals by radioactive decay is called ………
a) fractional distillation
b) carbon dating
c) destructive distillation
d) none of these
The age of uranium containing material can be determined by measuring the percentage of
a) uranium
b) copper
c) lead
d) zinc
Disintegration of uranium results in the production of ………
a) lead
b) zinc
c) copper
d) sodium
Isotopes are used in ……… processes
a) chemical
b) medical
c) agricultural
d) all of these.
Iodine-131 is used in cure for …….
a) brain imaging
b) goiter
c) tumors
d) cancer
