Question

what are isotops and allotropes ? give example.

Answer 1

Isotopes are those Elements which have same atomic number but different mass number ...sic as example the three isotopes of hydrogen are
1 Protium
2 Deuterium
3 Tritium
Allotropes are the element having many existence in the nature like
alloptropes of carbon are
1 Diamond
2 Graphite
3 Coal.....

Answer 2

allot ropes are the different forms of a element like carbon has diamond and graphite and isotopes are those forms of elements which have same atomic no. but different mass no. example is 35 CL 17 AND 37 CL 17