Answer and Explanation:
<u>Solids:</u>
We can name some chemical elements that in nature are solids at room temperature:
Aluminium (Al): it is a dultile metal with a color between silver and white.
Sulfur (S₈): it is a pale yellow solid.
Zinc (Zn): it is a metallic brittle solid.
<u>Liquids</u>:
Some substances that are liquids at room temperature are:
Water (H₂O): it is a subtance composed by 2 atoms of hydrogen and 1 atom of oxygen. It is a clear, limpid, odorless liquid.
Bromine (Br₂): it is a homogenoeus halogen which is liquid at room temperature. It has a color beteween red and brown.
Mercury (Hg): this heavy metal is liquid at room temperature.
<u>Gases</u>:
Hydrogen (H₂): it is a colorless, odorless and hightly inflammable gas.
Oxygen (O₂): a diatomic gas, without odor neither color, with an important role in biological proceesses.
Nitrogen (N₂): other diatomic gas, which is inert (it does not react easily).
