Question

How many covalent bonds does oxygen form if each of its unpaired electrons participate in one bond?

Answer 1

The oxygen atom has 4 valence electrons. Valence electrons are the electrons found in the outermost shell of an atom. These are the electrons that participate in chemical reactions during bonding. Since 4 electrons make up 2 pairs, an oxygen atom is capable of making 2 covalent bonds.

Answer 2

Oxygen forms two covalent bonds or a single double bond.  

Further explanation:  

Oxygen forms two covalent bonds, or a double covalent bond. It has two unpaired electrons. Oxygen has six electrons in its outermost orbital which are involved in bonding.  

Covalent bond:

A bond which is formed by the mutual sharing of electrons is called a covalent bond. The valence electrons of an atom are involved in the formation of a covalent bond. The covalent bond is of many types depending upon its kinds of bonding atoms or bond order. Oxygen atom containing six electrons in its outermost orbit forms a double covalent bond.  

According to bond order the following are the three types of covalent bonds:

Single covalent bond:

The type of covalent bond which is formed by the mutual sharing of one electron pair is termed as single covalent bond.  

For example:  

The bond in hydrochloric acid is a covalent bond.  

Double covalent bond:

A bond which is formed by the mutual sharing of two pairs of electrons is termed as double covalent bond.  

For example:

Bond in carbon dioxide etc.  

Triple covalent bond:

A bond which is formed by the mutual sharing of three pair of electrons is called a triple covalent bond.  

For example:  

Bond present in acetylene etc.  

Strength of bonds:  

Double covalent bond is stronger than a single covalent bond and a triple covalent bond is stronger than the double covalent bond.  

Answer details

Subject: Chemistry

Level: College

Keywords

• Covalent bond
• Single covalent bond
• Double covalent bond
• Triple covalent bond
• Strength of bonds

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