- are composed of three different elements
- most common types of ternary compounds consist of a metallic cation (positive ion) and a polyatomic anion (negative ion).
Example
Steps:
1. Write the symbols for the monoatomic and polyatomic ions in the compound.
ex. Potassium = K Hydroxide = OH
2. Look up the oxidation numbers of the ions involved and write them as superscripts to the right of the elemental symbols.
ex. Potassium = K+ Hydroxide = OH-
3.Use the correct combination of ions to produce a compound with a net charge of zero. Parenthesis must be used if you need more than one of a polyatomic ion.
ex. KOH
Ternary Ionic Compound:
1. First word: the complete name of the less electronegative element.
2. Second word: consisting of the stem of the more electronegative element with an -ate or an -ite suffix. Either the prefix per- or the prefix hypo- may also be used to help indicate the ON of the nonmetal X. Greek prefixes are not used with ionic compounds.
3. Some groups have special names; Cations are named like a metal. Anions like a nonmetal are named with an -ide on the ending
- usually contain only a kind of metal cation and a kind of oxyanion.
1. First word: the complete name of the less electronegative element.
2. Second word: consisting of the stem of the more electronegative element with an -ate or an -ite suffix. Either the prefix per- or the prefix hypo- may also be used to help indicate the ON of the nonmetal X. Greek prefixes are not used with ionic compounds.
3. Some groups have special names; Cations are named like a metal. Anions like a nonmetal are named with an -ide on the ending
Examples:
1
| Ba(ClO3)2 | K2SO4 |
| barium chlorate | potassium sulfate |
*Upon learning a list of ions, it is frequently easier to name an ionic compound by simply listing the ion names in the order given in the formula.
Members:
Monsalud
Mendoza
Pagkalinawan
Pacunayen
Ponce
II-5 group 3
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