Question
The number of beta particles emitted by radioactive substance is twice the number of alpha particle emitted by it. The resulting daughter is an
-
isobar of parent
-
isomer of parent
-
isotone of parent
-
isotope of parent
Solution
D.
isotope of parent
Let the radioactive transition is given by
The atoms of an element having a same atomic number but a differnent mass number are called isotopes.
So, 
