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Emission of an electron from the surface of a metal caused by impinging electromagnetic radiation of certain minimum energy, current increases with increasing intensity of radiation.

 

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End Point

The point at which an indicator changes colour and a titration is stopped.

Heterogeneous Catalyst

A catalyst that exists in a different phase (solid, liquid or gas) from the reactants, a contact catalyst.

Alpha Particles

A helium nucleus.

Molar Solubility

Number of moles of a solute that dissolve to produce a litre of saturated solution.

Spectral Line

Any of a number of lines corresponding to definite wavelengths of an atomic emission or absorption spectrum, represents the energy difference between two energy levels.

 

Basic Anhydride

The oxide of a metal that reacts with water to form a base.

Chemistry is a familiar school subject

Everyone liked to observe the reaction of reagents. But few know interesting facts about chemistry, which we will discuss in this article.

Bond Order

Half the numbers of electrons in bonding orbitals minus half the number of electrons in antibonding orbitals. Bond order gives an indication to the stability of a bond. Also defined as the difference between the number of bonding electrons and antibonding electrons divided by two.

Band Theory of Metals

Theory that accounts for the bonding and properties of metallic solids.

Ternary Acid

A ternary compound containing H, O, and another element, often a nonmetal.