What are Monatomic Gases? “Monatomic” is a combination of two words “mono”, and “atomic” means a single atom. This term is used in both Physics and Chemistry and is applied to the gases as monatomic gases. In the gaseous phase…

The measurement of large distances is simple. We use kilometres for terrestrial applications, light years for stellar applications, and 1 parsec (3.26 light-years) for galactic applications. On the other end of the scale, we have small measures. We can understand…

An atom is made up of nuclei and electrons, bounded by electromagnetic force. The mass of electrons is small when compared to that of nuclei and negatively charged. Nuclei consist of neutrons and protons. The protons consist of point-like particles known as…

Geiger counter is a device which is used to detect and measure particles in ionized gases. It is widely used in applications like radiological protection, radiation dosimetry,  and experimental physics. It is made up of a metallic tube, filled with…

The gas constant is a physical constant denoted by R and is expressed in terms of units of energy per temperature increment per mole. It is also known as the ideal gas constant or molar gas constant or universal gas…

You would have observed changing states of matter when ice cubes melt from solid into liquid water or when water boils into vapor, but have you wondered why substances change form? Changing states of matter occur when matter loses or…

As we know matter in everyday life exists in three forms; solids, liquids and gases. In this article, we will examine the interchangeability of the states of matter and examine the conditions required for such a change to occur. Let…

The behaviour of gas molecules is dependent on the properties and laws obeyed by the molecules of the gas. The distribution of molecules in a gas is very different from the distribution of molecules in liquids and solids. There are…

What Is Atomic Structure? The atomic structure of an element refers to the constitution of its nucleus and the arrangement of the electrons around it. Primarily, the atomic structure of matter is made up of protons, electrons and neutrons. The protons and…