2.5 Simple molecules and Covalent Bonds

Front

What is a covalent bond?

Back

A covalent bond is formed when a pair of electrons is shared between two atoms, leading to noble gas electronic configurations.

Front

Describe the formation of covalent bonds in H2.

Back

In H2, two hydrogen atoms share one pair of electrons, resulting in a full outer shell.

Front

What are the properties of simple molecular compounds regarding melting and boiling points?

Back

Simple molecular compounds have low melting and boiling points due to weak intermolecular forces. Little amount of energy is required to overcome the weak forces.

Front

What is the electrical conductivity of simple molecular compounds?

Back

Simple molecular compounds have poor electrical conductivity. There are no mobile ions or electrons.

Front

Describe the formation of covalent bonds in O2.

Back

In O2, two oxygen atoms share two pairs of electrons, forming a double bond.

Front

Describe the formation of covalent bonds in N2.

Back

In N2, two nitrogen atoms share three pairs of electrons, forming a triple bond.

Front

Explain the low melting and boiling points of simple molecular compounds.

Back

Low melting and boiling points are due to weak intermolecular forces.

Front

Explain the poor electrical conductivity of simple molecular compounds.

Back

Poor electrical conductivity is due to not having free-moving electrons and free-moving ions