Respuesta :
Explanation:
Room temperature means temperature is 25 degree Celsius. It is a temperature which is neither too high or too low for living beings.
Elements which are gaseous at room temperature are hydrogen, helium, nitrogen, oxygen, fluorine, neon, chlorine, argon, krypton, xenon and radon.
All these elements of periodic table are gasses at [tex]25^{o}C[/tex].
Answer: There are 11 elements which are gaseous at room temperature.
Explanation:
In a period table, out of total number of elements discovered till date, only 11 naturally occur as gaseous state.
The elements that occur naturally in gaseous state are: Hydrogen (H), Helium (He), Nitrogen (N), Oxygen (O), Fluorine (F), Neon(Ne), Chlorine (Cl), Argon(Ar), Krypton(Kr), Xenon (Xe) and Radon(Rn).
Hence, there are 11 elements which are gaseous at room temperature.
