How Many Elements are Gaseous at Room Temperature

Introduction

The periodic table is a table that consists of chemical elements that are arranged in rows in the order of their atomic number. The elements are arranged in the increasing order of their atomic number and are grouped with other elements that are of similar chemical properties. A row in a periodic table is known as a period and a column is termed a group. The elements that are in the same group have the same valence electron configuration and therefore have similar chemical properties. The elements that are placed in the same period are characterised by increasing order of valence electrons.

Elements That are Gaseous at Room Temperature

There are a total of 118 elements discovered to date that has been placed in the periodic table. These are present either in a solid, liquid or gaseous state. Out of these 118 elements, 11 elements are present in the gaseous state at room temperature. These 11 elements are Hydrogen, Helium, Neon, Argon, Krypton, Xenon, Radon, Fluorine, Chlorine, Nitrogen and Oxygen. Most of these elements belong to group eight of the periodic table. Here, room temperature refers to the temperature range between 68 and 77 degrees Fahrenheit or between 20 and 25 degrees Celsius.

Conclusion

There are eleven elements in the periodic table that are present in the gaseous state at room temperature which is Hydrogen, Helium, Neon, Argon, Krypton, Xenon, Radon, Fluorine, Chlorine, Nitrogen and Oxygen.