A homonuclear diatomic molecule is made up of _____________.

a.
three types of elements

b.
one type of element

c.
two types of element

d.
more than two types of elements

b. One type of element

c. two types of element

A homonuclear diatomic molecule is made up of _____________.

b. one type of element

To understand this concept, it's helpful to know that a diatomic molecule consists of two atoms chemically bonded together. The prefix "di-" in "diatomic" refers to two atoms.

In the case of a homonuclear diatomic molecule, both atoms present in the molecule are of the same element. For example, consider oxygen gas (O2), where two oxygen atoms are chemically bonded together to form a diatomic molecule. Here, both atoms are of the same element, which is oxygen.

Therefore, the correct answer is b. one type of element.