Ch 7

Question 1

Chemical bond

Answer 1

Force that holds two atoms together

Question 2

Cation

Answer 2

Positively charged ion. No dog ion

Question 3

Anion

Answer 3

Negative ion

Question 4

Ionic bond

Answer 4

Electrostatic force that holds oppositely charged ions together

Question 5

Ionic compounds

Answer 5

Compounds held together by ionic bonds

Question 6

Crystal lattice

Answer 6

3D geometric arrangement of particles. Each positive ion surrounded by negative, each negative surrounded by positive.

Question 7

Electrolyte

Answer 7

Ionic compound when as liquid conducts electricity

Question 8

Lattice energy

Answer 8

Energy required to separate 1 mole of the ions in a crystal lattice

Question 9

Formula unit

Answer 9

Simplest ratio of atoms in an ionic compound

Question 10

Monatomic ion

Answer 10

One atom ion

Question 11

Oxidation number/state

Answer 11

Charge of a monatomic ion

Question 12

Polyatomic ion

Answer 12

Ions made of more than 1 atom

Question 13

Oxyanion

Answer 13

Polyatomic ion made of an element bonded to oxygen

Question 14

Electron sea model

Answer 14

All metal atoms in metallic solid contribute valence electrons to make a sea of electrons

Question 15

Delocalized electrons

Answer 15

Electrons in outer energy levels of bonding metals. Can move easily around

Question 16

Metallic bond

Answer 16

Attraction of a metallic cation for delocalized electrons

Question 17

Alloy

Answer 17

Mixture of elements with metallic properties