Covalent Bonding and Molecular Substances

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond formed when two atoms share one or more pairs of electrons.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to form bonds in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration.

Front

What is a polar molecule?

Back

A polar molecule is a molecule that has a net dipole moment due to the presence of polar bonds, resulting in a partial positive charge on one end and a partial negative charge on the other.

Front

What is a non-polar molecule?

Back

A non-polar molecule is a molecule that does not have a net dipole moment, meaning the charge distribution is even and there are no charged ends.

Front

What is a Lewis Dot Diagram?

Back

A Lewis Dot Diagram is a representation of the valence electrons of an atom, showing how they are arranged in bonds and lone pairs.

Front

What is a multiple bond?

Back

A multiple bond is a bond that involves the sharing of more than one pair of electrons between two atoms, such as double or triple bonds.

Front

What is the shape of a linear molecule?

Back

A linear molecule has a straight-line shape, with bond angles of 180 degrees.

Front

What is the shape of a tetrahedral molecule?

Back

A tetrahedral molecule has a three-dimensional shape with bond angles of approximately 109.5 degrees, where four atoms are bonded to a central atom.

Front

What is molecular polarity?

Back

Molecular polarity refers to the distribution of electrical charge over the atoms in a molecule, determining whether the molecule is polar or non-polar.

Front

What is the significance of molecular polarities in mixtures?

Back

Molecular polarities determine how substances interact with each other; polar substances tend to mix with polar substances, while non-polar substances mix with non-polar substances.