What is one element in the which is a gas at room temperature and in which the atoms are joined together in molecules?

1 Answer
Jun 2, 2017

Answer:

Oxygen

Explanation:

Oxygen is an element which is a gas at room temperature. However, Oxygen can only be a gas at room temperature if it is joined to itself in an Oxygen molecule of #0"_2# . This is because Oxygen is a highly reactive element that wants to form bonds, even with itself.