Question

Physical Science Question:
Which statement is true about two isotopes of the same element?
(a)They have the same mass number.
(b)They have different numbers of protons.
(c)They have different locations on the periodic table.
(d)They have different numbers of neutrons.

Answer 1

a is false because atoms having same mass number are isobar
b is false
c is false
d is true because we say atoms which have different numbers of neutrons(that is really important) but same numbers of protons are isotopes.
I hope that helps you.