Here's a breakdown:
* Gases at Room Temperature: The elements that are gases at room temperature (around 25°C or 77°F) are:
* Noble Gases: Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn)
* Diatomic Gases: Hydrogen (H₂), Nitrogen (N₂), Oxygen (O₂), Fluorine (F₂), Chlorine (Cl₂)
* Other States at Room Temperature:
* Solids: Most elements are solids at room temperature, including metals like iron, copper, gold, and nonmetals like carbon (as graphite or diamond), sulfur, and phosphorus.
* Liquids: Only two elements are liquids at room temperature: Bromine (Br₂) and Mercury (Hg).
So, to answer your question more completely: Some elements are gases at room temperature, but many are not.