Ionic Formula
Name of Ionic Compound
Al2O3
Aluminum Oxide
Polyatomic ions are ions formed by more than one atom.
Below are some common polyatomic ions along with their
oxidation numbers:
•
•
•
(SO4)-2
(PO4)-3
(NO3)-1
(NH4)+1
Sulfate
Phosphate
Nitrate
Ammonium
Ba3N2
barium nitride
Cs2O
Cesium Oxide
CaO
calcium oxide
Determine the chemical compound formula and compound
name for the compounds made with these combinations:
Li2O
lithium oxide
Combinations of elements & polyatomic ions:
Rb3N
Rubidium Nitride
Barium
(PO4)-3 Ba3(PO4)2
Barium Phosphate
Na3N
sodium nitride
Potassium
(SO4)-2
Potassium Sulfate
Calcium
(NO3)-1 Ca(NO3)2
Ammonium &
Sulfur (NH4)2S
Ca3N2
•
K2SO4
Calcium Nitrate__
Calcium nitride
MgCl2
magnesium chloride
Element
SrSe
Strontium selenide
Cs2S
Cesium sulfide
Al2S3
aluminum sulfide
Element A
K
Bi
O
Ga
Cs
Br
ion formed
Ammonium Sulfide
Noble gas
it becomes like
K+1
Bi-3_____
O-2____
Ga+3_____
Cs+1____
Br-1_____
Argon
Radon
Neon
Argon
Xenon
Krypton
Element B
Ionic or Covalent
Chemical formula
for compound
Compound Name
B
N
covalent
BN
Boron mononitride
Na
Se
ionic
Na2Se
P
Sr
ionic
Sr3P2
P
S
covalent
P2S3
Sodium Selenide
Strontium Phosphide
Diphosphorus trisulfide
Si
C
covalent
SiC
Silicon monocarbide
Po
Cl
covalent
PoCl2
Polonium dichloride
As
Ca
ionic
Ca3As2
I
ionic
AlI3
At
ionic
MgAt2
Calcium Arsenide
Al
Aluminum Iodide
Mg
Magnesium Astatide
Ca
P
ionic
Ca3P2
Calcium Phosphide
Silicon and Oxygen
Arsenic and Selenium
(covalent, Si is a metalloid and O is a non-metal)
SiO2 Silicon dioxide
(covalent, As is a metalloid and Se is a non-metal) As2Se3
Diarsenic triselenide
Magnesium and Neon
(no bonding or compound formed , Ne is a noble gas and will not bond)
Oxygen and Beryllium
(ionic, Be is a metal and O is a non-metal)
BeO Beryllium Oxide
Phosphorus and Strontium
(ionic, Sr is a metal and P is a non-metal)
Sr3P2 Strontium Phosphide
Boron and Sulfur
(covalent, B is a metalloid and S is a non-metal)
B2S3 Diboron trisulfide
Chlorine and Zinc
(ionic, Zn is a metal and Cl is a non-metal)
ZnCl2 Zinc Chloride
Antimony and Oxygen
(covalent, Sb is a metalloid and O is a non-metal)
Sb2O3 Diantimony trioxide
Fluorine and Manganese
(ionic, Mn is a metal and F is a non-metal)
MnF2 Manganese Fluoride
Phosphorus and Oxygen
(covalent, P is a non-metal and F is a non-metal)
P 2O 3
Diphosphorus trioxide
For the exam:
1) Know ‘ions’ and how they are formed – cations & anions.
2) Know how to determine if an element is a metal, nonmetal, or metalloid
3) Know how to determine when elements combine if they combine with ionic bonds or covalent
bonds.
4) Know how to determine the chemical formula for ionic, covalent, and polyatomic bonding
5) Know how to determine the compound name for ionic, covalent, and polyatomic
compounds.
a. know the Greek prefixes in order to determine compound names for covalent compounds
6) Study the lecture notes on Mrs. Shankles’ website titled “Chemical_Compounds_Bonds”.
a. there are multiple choice questions on the exam.