state gov AP Police SI (Pre+Mains) Mock Test 2022 General Science Chemistry Basic Concepts of Chemistry
Which of the following atoms of an element are isotopes?
I. Mass number = 36, Atomic number = 34
II. Mass number = 36, Atomic number = 32
III. Mass number = 35, Atomic number = 32
1
I and III
2
None is isotope
3
I and II
4
II and III