Chapter7:ionic compounds

Question 1

Chemical Bond

Answer 1

The force that holds atoms together

Question 2

Ionic Compound

Answer 2

Formed by metal and nonmetal

Forms a formula unit(formula unit is a ratio)

Form a crystal lattice

The negative are surrounded at all times by a positive and vise verce.

The strength of the bond is related to: latice energy. magnitude of charge, and size

Question 3

latice Energy

Answer 3

energy needed to break up 1 mole

Question 4

Cations and their charges

Answer 4

Group 1- 1+

Group 2- 2+

Most 2 block metals can form several cations

vanadium= 2+ 3+ 4+

Silver is always 1+

Cadmium is always 2+

Question 5

Fe charge

Answer 5

1-

Question 6

I charge

Answer 6

1-

Question 7

ClO2-

Answer 7

Chlorite

1-

Question 8

ClO3-

Answer 8

Chlorite

1-

Question 9

CN-

Answer 9

Cyanide 1-

Question 10

CO3 2-

Answer 10

Carbonate

2-

Question 11

SO3 2-

Answer 11

Sulfite 2-

Question 12

SO4 2-

Answer 12

Sulfate 2-

Question 13

PO4 3-

Answer 13

Phosphate 3-

Question 14

Inorganic Nomenclature

Answer 14

Name of cation

write anion

if cation can have multiple charges add roman numeral

Question 15

Patterns in Oxyanion Nomenclature

Answer 15

• when there are two oxyanions involving the same element the one with fewer oxygens ends in ‘ite’ and the one with more ends in ‘ate’
• the one with the fewest ends in ‘hypo’ and ends in ‘ite’
• the one with the most starts with ‘per’ and ends in ‘ate’

Question 16

Metalic bond

Answer 16

Metal cations are surrounded by a sea of delocalized valence electrons

Metals are not covalently bonded, but the attractions between atoms are too strong to be van de waals forces

in metals valence electrons are delocalized throughout the solid.

Question 17

Alloys

Answer 17

mixture of elements that have metalic properties

Question 18

Substitutional Alloy

Answer 18

something about the same size substitutes out an atom in a crystal

Question 19

Interstitial Alloy

Answer 19

tiny atoms fill the spaces inbetween atoms and makes it stronger.