Question

An element can have atoms with different mass number but same chemical properties and some are also used in the field of medicine in the treatment of disease 1.what are such element known as 2. define such element and also write one example 3. which properties are different in them

Answer 1

1.Such type of elements are called isotope

2.Isotopes are elements with same atomic no. and different atomic mass no.
e.g.o6 and o8

3.Physical properties are different, but chemical properties are same.

Hope this helps!