Chapter 4.3

Question 1

Coordinate covalent bond

Answer 1

A type of covalent bond in which both electrons come from the same arom

Question 2

Resonance structures

Answer 2

The individual structures of a molecule that differ only in the position of the double bond

Question 3

Valence shell electron pair repulsion theory (VSEPR)

Answer 3

Pairs of electrons in the valence shell of an atom repel each other and will therefore take up positions in space to minimize these repulsions

Question 4

Order of repulsion strength for pairs of electrons from strongest to weakest

Answer 4

Lone pair-lone pair > lone pair-bonding pair > bonding pair-bonding pair

Question 5

Polar bond

Answer 5

When the electronegativity difference between two atoms covalent it bonded together results in the electrons lying more towards one atom than the other

Question 6

How can a molecule be non-polar if the individual bonds are polar?

Answer 6

If the symmetry of the molecule causes the dipole moments of the individual bonds to cancel out

Question 7

Dipole moment

Answer 7

The direction in which an electron is closer to in a covalently bonded molecule

Question 8

Allotrope

Answer 8

A different form of the same element