Question #e76f5

1 Answer
Meave60
Feb 11, 2016

They are called a molecule.

Explanation:

Molecules are composed of two or more atoms covalently bonded, which means the sharing of valence electrons. Generally molecules are formed from nonmetals. A single covalent bond forms from the sharing of two valence electrons between atoms. A double covalent bond is formed from the sharing of four valence electrons between atoms, and a triple covalent bond is formed from the sharing of six electrons between atoms.

The hydrogen molecule #("H"_2")# is composed of a single covalent bond in which the valence electrons are shared.

http://www.school-for-champions.com/chemistry/bonding_types.htm#.VrwYsPkrLcs

The water molecule #("H"_2"O")# is composed of two single covalent bonds between the hydrogen atoms and the oxygen atom.

http://www.school-for-champions.com/chemistry/bonding_types.htm#.VrwYsPkrLcs

The oxygen molecule #("O"_2")# is formed by the formation of a double covalent bond between atoms. Four electrons are shared instead of two.

http://www.school-for-champions.com/chemistry/bonding_types.htm#.VrwYsPkrLcs

The nitrogen molecule #("N"_2")# is formed by the formation of a triple covalent bond between atoms. Six electrons are shared.
http://ibchem.com/IB/ibnotes/full/bon_htm/4.2.htm

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