A substance is present in the gaseous state at room temperature. Which of the following best explains the probable position of the substance in the periodic table?

1. It is between groups 1 to 12 because it is a metal.
2. It is between groups 13 to 18 because it is a metal.
3. It is between groups 1 to 12 because it is a non-metal.
4. It is between groups 13 to 18 because it is a non-metal.