1. Binary Ionic Compounds Formula to Name

2. The Language of Chemistry
Chemistry has a language all of its own
Chemistry
English
Element Symbols
Letters
Chemical Formulas
Words
Chemical Equations
Sentences
Each element symbol starts with a capital letter

3. Binary Ionic Compounds
Ionic bond: bond formed by attraction between + and - ions +
Cation -
Anion
Ionic Compound

4. Metals & Non-Metals Ionic Bonds occur between metals & non-metals H HeLi Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Lr Rf Db Sg Bh Hs Mt
Uun
Uuu
Uub
Uut
Metals
Metalloids
Non-metals

5. Identifying/Naming: Binary Ionic Compounds
These compounds have:
2 elements (“binary”)
A metal & a non-metal (“ionic”)
To name:
Name of the metal (the cation)
Name of the non-metal (the anion) with the suffix “-ide”
The subscripts in the formula do not matter when naming this type

6. Example #1
CaBr2

7. Example #2
K2O

8. Write the name for the following compounds
Let’s Practice
CaF2
Na3P
NaI
SrBr2
Example:
Write the name for the following compounds

9. Write the name for the following compounds
Let’s Practice
CaF2
Na3P
NaCl
SrBr2
Calcium fluoride
Sodium phosphide
Sodium chloride
Strontium bromide
Example:
Write the name for the following compounds

10. Binary Ionic Compounds Name to Formula

11. Writing Formulas: Binary Ionic
These compounds:
End in “-ide” (except “hydroxide and cyanide”)
Do NOT contain covalent prefixes
To write:
Symbol & charge of the metal cation
Symbol & charge of the non-metal anion
Add more of the cations and/or anions until you have a neutral compound
Use subscripts to show how many of each type of ion you have

12. Example
Sodium fluoride

13. Write the following chemical formulas
Let’s Practice
Cesium chloride
Potassium oxide
Calcium sulfide
Lithium nitride
Example:
Write the following chemical formulas

14. Write the following chemical formulas
Let’s Practice
Cesium chloride
Potassium oxide
Calcium sulfide
Lithium nitride
CsCl
K2O
CaS
Li3N
Example:
Write the following chemical formulas

15. Multivalent Ionic Compounds Formula to Name

16. Multivalent (Transition) Metals
Multivalent Metal: a metal that has more than one possibility for cationic (positive) charge
The Appendix of your book (Page A-2) has the following chart
Common multivalent metals and their charges
Cobalt Co Co+3
Copper Cu Cu+2
Iron Fe Fe+3
Lead Pb Pb+4
Manganese Mn+2 Mn+3
Mercury Hg2+2 Hg+2
Tin Sn Sn+4 16

17. Multivalent Metals: Formula to Name
To identify:
Have a transition metal
To name these compounds:
Name of the metal cation
Name of the anion
Determine total negative charge
Total negative charge must = total positive charge
Determine the charge on each metal atom
Write the charge in roman numerals in parenthesis after the metal’s name 17

18. Example #8
CuCl2 18

19. Example #9
Fe2(CO3)3 19

20. Write the name for the following compounds
Let’s Practice
PbCl2
PbCl4
MnO
Mn2O7
Example:
Write the name for the following compounds 20

21. Write the name for the following compounds
Let’s Practice
PbCl2
PbCl4
MnO
Mn2O3
Lead (II) chloride
Lead (IV) chloride
Manganese (II) oxide
Manganese (VII) oxide
Example:
Write the name for the following compounds 21

22. Multivalent Ionic Compounds Name to Formula

23. Multivalent Metals: Name to Formula
To identify:
Will have roman numerals
To write these formulas:
Same as binary
Roman numerals tell the charge of the metal cation 23

24. Example #5
Iron (III) oxide 24

25. Example #6
Copper (I) nitride 25

26. Write the following chemical formulas
Let’s Practice
Iron (II) nitride
Copper (I) chloride
Lead (IV) sulfide
Tin (II) oxide
Example:
Write the following chemical formulas 26

27. Write the following chemical formulas
Let’s Practice
Iron (II) nitride
Copper (I) chloride
Lead (IV) sulfide
Tin (II) oxide
Fe3N2
CuCl
PbS2
SnO
Example:
Write the following chemical formulas 27

28. Polyatomic Ionic Compounds Formula to Name

29. Polyatomic Ions
Polyatomic Ion: more than one atom that together have a charge
Polyatomic Ionic Compound: compound containing at least one polyatomic ion +
Cation -
Polyatomic
Anion
Polyatomic Ionic
Compound 29

30. Help Identifying Polyatomic Ions
Only cation polyatomic ion: NH4
All other polyatomic ions are anions (back-half)
Subscripts must match exactly as it appears on your list
If there are parenthesis, the polyatomic ion is inside 30

31. Practice Identifying Polyatomic Ions
NaNO3
NH4Cl
Ca(OH)2
(NH4)3PO4
K2CO3
Example:
Identify and name the polyatomic ion in each compound 31

32. Practice Identifying Polyatomic Ions
NaNO3
NH4Cl
Ca(OH)2
(NH4)3PO4
K2CO3
Nitrate
Ammonium
Hydroxide
Ammonium & phosphate
Carbonate
Example:
Identify and name the polyatomic ion in each compound 32

33. Polyatomic Ionic: Formula to Name
To identify:
More than 2 capital letters (not starting with H)
at least 1 metal & 1 non-metal
To name:
Name of the cation
If the anion is a polyatomic ion, write the polyatomic ion’s name just as it is
If the anion is a single non-metal element, use “-ide” 33

34. Example #1
NaNO3 34

35. Example #2
(NH4)2S 35

36. Write the name for the following compounds
Let’s Practice
Ca(NO3)2
Na3PO4
NH4ClO
K2CO3
Example:
Write the name for the following compounds 36

37. Polyatomic Ionic Compounds Name to Formula

38. Polyatomic Ionic: Name to Formula
To identify:
Do not end with “-ide” (except hydroxide & cyanide)
Do not use covalent prefixes
To write these formulas:
Write the symbol & charge of the cation & anion
Add additional cations or anions to have a neutral compound
Use subscripts to show the number of ions
- When using subscripts with a polyatomic ion, you must put the polyatomic ion in parenthesis. 38

39. Example #3
Sodium carbonate 39

40. Example #4
Magnesium nitrate 40

41. Write the following chemical formulas
Let’s Practice
Sodium nitrate
Calcium chlorate
Potassium sulfite
Calcium hydroxide
Example:
Write the following chemical formulas 41

42. Write the following chemical formulas
Let’s Practice
Sodium nitrate
Calcium chlorate
Potassium sulfite
Calcium hydroxide
NaNO3
Ca(ClO3)2
K2SO3
Ca(OH)2
Example:
Write the following chemical formulas 42