Periodic Table Packet
Name: ___________________________________ pd. _________
Ionic Formulas & Nomenclature
· Oxidation number
· Anion
· Cation
· Polyatomic ion
· Formula unit
· Roman numerals
I CAN …
· Correctly name and write the formulas of ionic compounds,
including those with transition metals or polyatomic ions.
· Identify and write the name of polyatomic ions.
1
Determining the Ionic Charge
Element Property
electron config
# protons
#electrons
charge
Li
Before Making an Octet
Bohr Diagram
Lewis Dot
Structure
electron config
# protons
#electrons
charge
Be
Bohr Diagram
Lewis Dot
Structure
electron config
# protons
#electrons
charge
B
Bohr Diagram
Lewis Dot
Structure
2
After Making an Octet
Notes: Remember that Metals tend to lose their electrons, falling back to their inner octet,
becoming smaller, forming positive “cations”. Nonmetals tend to gain electrons, filling up their
current energy levels, becoming larger, forming negative “anions”. Complete the chart below.
Element
Na
Lewis Dot
# of Valance e-
Gain/Lose ___ e-
Valance Charge
1
L1
+1
Be
Cl
S
Al
Ne
K
N
O
Ca
P
B
Mg
3
Lewis Dot, Formula Unit & Naming Practice Sheet
Notes:
1. An ionic bond is an attraction of a cation for an anion resulting from the transfer of electrons.
Remember, the smaller nonmetals are more electronegative and pull the electrons close, away
from the larger, less electronegative metals.
2. When naming ionic compounds, the Metal is named first, followed by the nonmetal with an –ide
ending. Ex. Sodium Fluorine becomes Sodium Fluoride.
3. Formula Unit: Lowest whole number ratio of elements in the compound. Ex. Ca3N2
1. Draw the Lewis Structure for your first roll.
2. Draw the Lewis Structure for your second roll.
Formula Unit: _________
Formula Unit: _________
Name of Compound:
Name of Compound:
3. Draw the Lewis Structure for your third roll.
4. Draw the Lewis Structure for your fourth roll.
Formula Unit: _________
Formula Unit: _________
Name of Compound:
5. Draw the Lewis Structure for your fifth roll.
Name of Compound:
6. Draw the Lewis Structure for your sixth roll.
Formula Unit: _________
Formula Unit: _________
Name of Compound:
Name of Compound:
4
7. Draw the Lewis Structure for Al & F
8. Draw the Lewis Structure for Ca & I
Formula Unit: _________
Formula Unit: _________
Name of Compound:
9. Draw the Lewis Structure for Rb & O
Name of Compound:
10. Draw the Lewis Structure for Sr & F
Formula Unit: _________
Formula Unit: _________
Name of Compound:
11. Draw the Lewis Structure for Al & Cl
Name of Compound:
12. Draw the Lewis Structure for Mg & P
Formula Unit: _________
Formula Unit: _________
Name of Compound:
Name of Compound:
13. Draw the Lewis Structure for B & O
14. Draw the Lewis Structure for Be & S
Formula Unit: _________
Formula Unit: _________
Name of Compound:
Name of Compound:
5
Write the Formula / Formula Unit for the following Compounds
Determining the formula for Magnesium Fluoride?
2.
Identify the charges = Mg2+ F1
Cross the Charges, Mg2+ F1 = Mg1F2
3.
If the subscript is a 1 it does not need to be written.
4.
If there is a common subscript such as 2 as in Mg2O2, reduce it to Mg1O1 which is also MgO.
1.
Write Formula Unit For the Below Ionic Compounds
Name
Cation (+)
Anion (-)
Formula
1
Sodium Chloride
Na1+
Cl1-
Na1+1Cl1-1 = NaCl
2
Aluminum Chloride
Al3+
Cl1-
3
Aluminum Phosphide
4
Magnesium Oxide
5
Cesium Fluoride
6
Strontium Nitride
7
Lithium Sulfide
8
Calcium Chloride
9
Sodium Bromide
10
Beryllium Iodide
11
Strontium Fluoride
12
Aluminum Fluoride
13
Potassium Nitride
14
Sodium Sulfide
15
Lithium Oxide
16
Calcium Oxide
6
Polyatomic Ions
Ammonium (NH4)1+
Carbonate (CO3)2Chromate (CrO4)2-
Dichromate (Cr2O7)2Hydroxide (OH)1Nitrate (NO3)1-
Nitrite (NO2)1Sulfate (SO4)2Sulfite (SO3)2-
Phosphate (PO4)3-
Write the NAME of each of the following compounds.
1.
(NH4)Cl _______________________________
9.
Ga(ClO3)3 ____________________________
2.
Be(SO4) _______________________________
10. Cu(OH) ***______________________________
3.
(NH4)3N ______________________________
11. (NH4)3(PO4)___________________________
4.
MgCl2 ______________________________
12. Fe(SO4)_____________________________
5.
NH4(NO3)______________________________
13. Mg(NO3)2___________________________
6.
Sr3(PO4)2 _____________________________
14. (NH4)NO2 ____________________________
7.
Zn(CrO4)2 _____________________________
15. Na2(Cr2O7)____________________________
8.
K2(Cr2O7) ______________________________
16. Na(OH) ______________________________
Write the CHEMICAL FORMULA for each of the given NAMES…………cross charges
17. calcium carbonate
Ca2+ (CO3)2-
=
Ca2(CO3)2
= CaCO3
18. barium nitrate
_______________________________ = _______________________________
19. ammonium sulfate
_______________________________ = _______________________________
20. aluminum hydroxide ______________________________ = ________________________________
21. calcium phosphate
_______________________________ = _______________________________
22. cesium nitrate
_______________________________ = _______________________________
23. sodium nitrite
_______________________________ = _______________________________
24. calcium sulfate
_______________________________ = _______________________________
25. beryllium sulfate
_______________________________ = _______________________________
26. sodium carbonate
_______________________________ = _______________________________
27. magnesium phosphate_____________________________ = _______________________________
7
Write the formula for the variable charged binary ionic compounds:
1. Nickel (II) chloride_________________
6. Copper (II) chloride________________
2. Gold (III) oxide___________________
7. Copper (I) bromide_________________
3. Cobalt (II) phosphide_______________
8. Cobalt (II) phosphide_______________
4. Copper (I) bromide_________________
9. Manganese (III) bromide____________
5. Iron (III) chloride__________________
10. Iron (III) fluoride_________________
Name the variable charged compounds……use I, II, III, IV
11. Pb Br4__________________________
15. Cu Br___________________________
12. Pb3 N2__________________________
16. Cu O___________________________
13. Cu2 S___________________________
17. Ni O2___________________________
14. Pb O2___________________________
18. Cu2 S___________________________
8
Ions in Chemical Compounds
Complete the following table, being sure that the total charge on the resulting compound is zero.
Ions
Chloride
Cl1-
Hydroxide
(OH)1-
Nitrate
(NO3)1-
Sulfate
(SO4)2-
Hydrogen
H
Sodium
Na
Ammonium
NH41+
Potassium
K
Calcium
Ca
Magnesium
Mg
Aluminum
Al
Iron (I)
Fe
Iron (II)
Fe
Strontium
Sr
Iron (III)
Fe
Lead (II)
Pb
Tin (IV)
Sn
Copper (I)
Cu
Hydrogen
H
9
Sulfide S2-
Carbonate
(CO3)2-
Phosphate
(PO4)3-
11/28
Monday
11/30, 12/01
12/05
Wednesday/Thursday
Monday
12/07, 12/08
Wednesday/Thursday
11/29
12/02
12/06
Tuesday
Friday
Tuesday
Test Day, no warm-up
10
11