Nomenclature

Question 1

Molecular formula

Answer 1

Indicates the actual numbers and types of atoms in a molecule

Question 2

Empirical formula

Answer 2

Only relative number of atoms in each type given

Question 3

Cation ion

Answer 3

Ion with a positive charge

Question 4

Anion

Answer 4

Ion with a negative charge

Question 5

Cation

Answer 5

Ion with positive charge (Protons > Electrons)

Question 6

Anion

Answer 6

Ion with negative charge (Electrons > Protons)

Question 7

Metals tend to ___ electrons to form ___

Answer 7

lose, cations

Question 8

Nonmetals tend to ___ electrons to form ___

Answer 8

gain, anions

Question 9

Polyatomic ions

Answer 9

Atoms joined as in a molecule but have a net +/- charge

Question 10

Ionic compound

Answer 10

Chemical compound where a metal and nonmetal bond (b/c opposite charges attract)

Question 11

Cations formed from metal atoms have the ___ name as the metal

Answer 11

Same

Question 12

Na+ is called a ___ ___

Answer 12

Sodium Ion

Question 13

If a metal can form different cations, the positive charge is indicated by a ___ ___ in parentheses following the name of the metal

An older method used to distinguish between two differently charged metal ions is to apply the ending ___ or ___ to the ___ name

___ represents the higher charged ion
___ represents the lower charged ion

Answer 13

Roman numeral,

-ous or ic to the latin name

• ic for higher charge
• ous for lower charge

Question 14

Fe2+ is called ___ or ___

Fe3+ is called ___ or ___

Answer 14

Iron(II) ion, ferrous ion
Iron(III) ion, ferric ion

NO SPACE

Question 15

Cations formed from nonmetal atoms have names that end in ___

(NH4)+ is called ___ ___
(H3O)+ is called ___ ___

Answer 15

-ium

Ammonium ion
Hydronium ion

Question 16

Monoatomic anions are formed by replacing the ending of the name of the element with ___

H- is ___ ___
O2- is ___ ___

Answer 16

-ide

Hydride ion
Oxide ion

Question 17

Polyatomic anions that end in -ide are: (5)

Answer 17

(OH)− hydroxide, 
(O)2− peroxide, 
(CN)− cyanide, 
(NH2)− amide and 
(HS)− hydrogen sulfide

Question 18

Polyatomic anions containing oxygen have names ending in ___ or ___

___ is for the most common oxyanion
___ is for an oxyanion with the same charge but 1 less O atom

Answer 18

-ate or -ite

• ate
• ite

Question 19

Prefixes for polyatomic anions are used when the series of oxyanions extend up to ___ members (ex: halogens)

___ indicates one more O atom than the oxyanion ending in -ate
___ indicates one less O atom than the oxyanion ending in -ite

Answer 19

4 members

per-
hypo-

Question 20

Hydroxide (Formula)

Answer 20

(OH)-

Question 21

Oxide (Formula)

Answer 21

(O)2-

Question 22

Sulfide (Formula)

Answer 22

(S)2-

Question 23

Nitride (Formula)

Answer 23

(N)3-

Question 24

Acetate ion

Answer 24

(CH3COO)-

Question 25

Perchlorate ion

Answer 25

(ClO4)-

Question 26

Nitrate ion

Answer 26

(NO3)-

Question 27

Carbonate ion

Answer 27

(CO3)2-

Question 28

Sulfate ion

Answer 28

(SO4)2-

Question 29

Phosphate ion

Answer 29

(PO4)3-

Question 30

Names of ionic compounds consist of ___ name followed by the ___ name

Answer 30

Cation, anion

Question 31

Roman numerals are used for ___ ___ to signify oxidation state

Answer 31

Transition metals

Question 32

For anions whose names end in -ate, changed to ___, For anions whose names end in -ite, changed to ___ Hypo and per stay the same

Answer 32

- Ic | - ous

Question 33

Acids containing anions with names ending in -ide change -ide to ___ and add the prefix ___

Answer 33

-ic, hydro

Question 34

Cuprous Copper(I)

Answer 34

Cu+

Question 35

Silver

Answer 35

Ag+

Question 36

Cupric Copper(II)

Answer 36

Cu2+

Question 37

Ferrous Iron(II)

Answer 37

Fe2+

Question 38

Zinc

Answer 38

Zn2+

Question 39

Aluminum

Answer 39

Al3+

Question 40

Iron(III) Ferric

Answer 40

Fe3+

Question 41

Nitrite

Answer 41

(NO2)-

Question 42

Nitrate

Answer 42

(NO3)-

Question 43

Hydroxide

Answer 43

(OH)-

Question 44

Hydroxide Carbonate/Bicarbonate

Answer 44

(HCO3)-

Question 45

Acetate

Answer 45

(CH3COO)-

Question 46

Hypochlorite

Answer 46

(ClO)-

Question 47

Chlorite

Answer 47

(ClO2)-

Question 48

Chlorate

Answer 48

(ClO3)-

Question 49

Perchlorate

Answer 49

(ClO4)-

Question 50

Carbonate

Answer 50

(CO3)2-

Question 51

Sulfite

Answer 51

(SO3)2-

Question 52

Sulfate

Answer 52

(SO4)2-

Question 53

Peroxide

Answer 53

(O2)2-

Question 54

Phosphate

Answer 54

(PO4)3-

Question 55

Ammonium

Answer 55

(NH4)+