When two atoms form a compound by sharing valence electrons, it is a covalent bond. This is opposed to an ionic bond which features a full transfer of electrons.
A single covalent bond
Covalent bond
this would be valence electrons
A double bond._.
Atoms undergo chemical bonding in order to achieve stable valence shells. In order for oxygen atoms to accomplish this when they bond together, they share two pairs of valence electrons, which is a double bond.
Double bond._.
Valence bond.
The answer is not 6 as said here before! The number of valence electrons in O2 (oxygen molecule) is: 12 valence electrons. 6 of them from each oxygen (O) atom. 4 valence electrons make up the double bond between the two oxygen atoms, and the remaining 8 valence electrons form lone pairs (non-bonding pairs) on the oxygen atoms, 2 lone pairs on each. I hope there is some help in this.
this would be valence electrons
Covalent Bond
A covalent double bond is formed.
True. Nitrogen can share three pairs of electrons and has a lone pair of electrons for a total of eight in it's valence shell
Covalent bonds
In ionic bonding, atoms of one element transfer electrons to the other so that both have stable configurations. In this type of bonding, outer-shell electrons are transferred from some atoms to the orbit of other atoms. Thus, atoms are ionized,those which give up electrons become negative ions. This creates an electrostatic bonding force between the atoms and is called ionic bonding. But in covalent bonding the valence electrons are not transferred from one atoms to the another atoms as in ionic crystals, but the neighbor atoms share their valence electrons under the formation of strong homopolar or covalent bonds. Thus, covalent bonds are formed by the shared electrons pairs between the valence electrons in the incomplete outer shell of the atoms.
A double bond._.
A double bond._.
Atoms undergo chemical bonding in order to achieve stable valence shells. In order for oxygen atoms to accomplish this when they bond together, they share two pairs of valence electrons, which is a double bond.
double bond
A triple covalent bond.