mathematical terms and symbols element

Symbols of Elements - Even before knowing what elements were, man started extracting them from their ores. A few metals like gold, silver, iron, copper, lead, tin and mercury were used even in the 1 s t century A.D. A mention of them is made in the 'Charaka Samhita' - ..

Even before knowing what elements were, man started extracting them from their ores. A few metals like gold, silver, iron, copper, lead, tin and mercury were used even in the 1 s t century A.D. A mention of them is made in the 'Charaka Samhita' - a medical treatise of ancient India. These..

It is a short hand notation of an element. E.g. sodium is denoted as Na..

Symbol - The symbol of an element is a short way of representing an element. Symbols can be formed as follows: 1) By using the first letter of the English name of the element. Hydrogen H Phosphorus P Oxygen O Sulphur S 2) By using the firs..

In order to represent the structures of the combining elements in the most simplest way in terms of the valence electrons on paper, Lewis proposed the following notation: The symbols of the element is written first. This represents the nucleus of the ..

Third Row Elements - The third row elements are from sodium to argon. The build up of these eight elements proceeds exactly in the same manner as discussed above. Here 3s- and 3p-orbitals are filled in place of 2s- and 2p-orbitals as has been done in case of Li to Ne. ..

According to Avagadro the smallest particle of an element, which may or may not have independent existence, is called an atom, while the smallest particle of a substance, which is capable of independent existence, is called a molecule. Molecules are classified as homoatomic and heteroatom..

All matter can be broadly divided into two major groups "Pure" and "Impure". The term 'purity' has quite a different meaning in chemistry than in our day-to-day life. Normally when we refer to pure water, pure milk, etc., what is implied is that the water, milk etc., are free from h..