Ch. 8 Covalent Bonding

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 Lewis Dot Diagram?

Back

The Lewis Dot Diagram is a representation of the valence electrons of an atom, showing how they are arranged in bonds with other atoms.

Front

How many valence electrons does carbon have?

Back

Carbon has 4 valence 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 covalent bond?

Back

A polar covalent bond is a type of bond where electrons are shared unequally between two atoms, resulting in a molecule with a slight electrical dipole moment.

Front

What is a non-polar covalent bond?

Back

A non-polar covalent bond is a type of bond where electrons are shared equally between two atoms, resulting in no charge separation.

Front

What is the molecular geometry of NH3 (ammonia)?

Back

The molecular geometry of NH3 is trigonal pyramidal.

Front

What is the significance of the electronegativity difference in covalent bonds?

Back

The electronegativity difference between two atoms determines whether the bond will be non-polar covalent, polar covalent, or ionic.

Front

How do you determine the number of bonds an atom can form?

Back

The number of bonds an atom can form is determined by the number of unpaired electrons in its valence shell.

Front

What is the Lewis structure for H2O (water)?

Back

The Lewis structure for H2O shows the oxygen atom bonded to two hydrogen atoms, with two lone pairs of electrons on the oxygen.