Question

define isotopes ? example

Answer 1

isotopes are the atoms of same atomic number but different mass number.
examples-1h1,1h21h3

Answer 2

hello
_______
__________

HERE IS YOUR ANSWER-
-----------------------------------------

ISOTOPES :

$<b><i>$

atoms of the Same element having same atomic numbers but different mass numbers are called ISOTOPES.

example

chlorine has three isotopes.

17cl35 , 17cl37.


I hope help you