chemical bonding k2 o

When an atom donates one, two or three electrons from its valence shell to another atom, which has the ability to accept these electrons, it is known as electrovalency. As a result of electrovalency, both these atoms achieve the structure of an inert gas. When the chemical bond..

Can we imagine a world without oxygen, nitrogen, water or carbon dioxide? Without any of these there would be no life at all. All the above mentioned compounds are covalent compounds formed by sharing of electrons. Non-metal atoms share the valence electrons and form molecules. These shared pairs o..

. This may be represented as: The hydrogen atom acts as a bridge between two atoms, holding one atom by a covalent bond and the other atom by a hydrogen bond. The hydrogen bond is represented by dotted line (....) while the covalent bond is represented by sol..

The four electron pairs (two bond pairs + two lone pairs) are distributed tetrahedrally around the central atom as shown below. The two lone pairs on the central atom repel the bond pair slightly inwards due to greater lone pair-bond pair repulsion. As a result, the h..

Elemental state and chemical reactivity - Nitrogen is a colorless gas and exists as diatomic. The two nitrogen atoms are held together by triple bond and have very high bond dissociation energy (945 kJ mol - 1 ..

Nitrogen is a colorless gas and exists as diatomic. The two nitrogen atoms are held together by triple bond and have very high bond dissociation energy (945 kJ mol - 1 ). ..

Chemical Combination - 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 comb..

Chemical Formula - The chemical formula of a substance is the symbolic representation of the actual number of atoms present in one molecule of that substance. Example 1: Formula of one molecule of oxygen is O 2 . It shows that one molecule of oxygen is made u..

Chemical Properties - The noble gases are generally inert and do not participate in the reactions easily. The inertness of noble gases is due to the following reasons. i) The atoms of noble gases have stable closed shell electronic configuration. ii) The noble gases have exceptionally hig..

Lanthanides are chemically reactive. They react with carbon, hydrogen, oxygen and sulphur and form carbides, hydrides, oxides and sulphides respectively. The oxides formed are M 2 O 3 oxides. They react with water and form insoluble hydroxides. The oxides and hydroxi..