chemical formulae of all substances with their valency

The chemical formula of a compound represents the composition of the molecule of the compound in terms of symbols of the elements present in ..

The outermost shell of an atom is called its Valence shell. It is the decisive shell during a chemical reaction. The electrons of only this outermost shell are involved during chemical combinations; electrons are either given out from the outermost shell, or accepted ..

The force which holds together the ions, atoms and molecules in a chemical substance is called as chemical bond. It is the same force which makes substances combine with each other in many different ways to give newer products. The combining tendency of atoms..

These are various chemical substances found in the ecosystem but they are organic in nature. They form the greater part of the living organism and form a link between the abiotic compounds and the biotic compound..

Name Name Chemical Formula Common Name Barium chloride BaCl 2 .2H 2 O Calcium chloride CaCl 2 .6H 2 O Dow flake Calcium nitrate Ca(NO 3 ) 2 .4H 2 O Lime salt petre or Norwegian salt pe..

The electrons present in the outer most shell are called valence electrons. The valency of an element is defined as its 'combining capacit..

Valency - It is the combining capacity of an element. It is the number of electrons in an atom that actually take part in bond formation. For example, carbon atom has 4 valence electrons. K LC (6) 2 4 Carbon atom is capable of forming 4 bonds. Hence, its valency is fou..

Hydrogen generally shows + 1 valency like alkali metal..

Like halogens, hydrogen may also show 1 valency by accepting an electron. Example: NaH (Sodium hydrid..

Valency - Valency is the combining capacity of an atom. It is equal to the number of electrons the atom loses, or gains or shares when it combines with one or more atoms. Depending on whether the atom loses, gains or shares electrons, the valency may be positive or neg..