bonding

Question 1

Types of bonding?

Answer 1

Ionic, covalent, metallic

Question 2

Define ionic bonding.

Answer 2

Electrostatic attraction between oppositely charged ions.

Question 3

Define covalent bonding.

Answer 3

Shared pair of electrons between atoms.

Question 4

Define metallic bonding.

Answer 4

Electrostatic attraction between a lattice of positive metal ions and delocalised electrons.

Question 5

What is a dative covalent bond?

Answer 5

A covalent bond in which both electrons come from the same atom.

Question 6

What determines molecular shape?

Answer 6

Electron pair repulsion (VSEPR) theory.

Question 7

Example bond angles?

Answer 7

Linear = 180°, Trigonal planar = 120°, Tetrahedral = 109.5°, Trigonal bipyramidal = 120°/90°, Octahedral = 90°

Question 8

Define electronegativity.

Answer 8

The ability of an atom to attract a shared pair of electrons in a covalent bond.

Question 9

Define polar bond.

Answer 9

Covalent bond where electrons are unequally shared due to electronegativity difference.

Question 10

Types of intermolecular forces?

Answer 10

Van der Waals (induced dipole), dipole-dipole, hydrogen bonding

Question 11

Define hydrogen bonding.

Answer 11

A strong intermolecular attraction between H bonded to F, O, or N and a lone pair on F, O, or N.