Question

[3]
(b) Bromine has two isotopes.
(i) Define the term isotope.
(il) Explain why the two isotopes of bromine have the same chemical properties.

Answer 1

(i) An isotope is a variant of an element that has the same number of protons but a different number of neutrons in its nucleus.
(ii) The two isotopes of bromine have the same chemical properties because they have the same number of protons, and the chemical behavior of an element is determined by the number of protons and electrons in its atoms.