intermolecular forces

Trends in Physical Properties of Group 17 Elements

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During the period 1811-1886, the halogens were discovered. They are non-metallic elements such as: Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I) and astatine (At) which are the members of the halogen family. This family constitutes the group 17 of the periodic table. The word halogens have been derived from the Greek word “Halo” that … Read more

Consequences of surface tension

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The force that acts at right angles to an imaginary line of unit length at the surface of liquid at rest is called surface tension. Simply, it can be defined as the force which is responsible for the tension at the surface of the liquid. It is one of the important properties exhibited by liquids … Read more