What are the 4 rules for naming ionic compounds?
Rules for naming simple ionic compounds.
- Name the metal by its elemental name.
- Name the nonmetal by its elemental name and an -ide ending.
- Name metals that can have different oxidation states using roman numerals to indicate positive charge. Example Fe2+ is Iron(II)
- Name polyatomic ions by their names.
How do you remember the names of ionic compounds?
You can remember these names by referring to their symbols. Determine if the cation has two possible charges. If so, name cations with the lower charge with the suffix “-ous” and the higher charge with the suffix “-ic.” For example, Cu+ is cuprous, Cu2+ is cupric. Fe2+ is ferrous, Fe3+ is ferric.
What are the 4 types of ionic compounds?
Binary Ionic Compounds Containing a Metal and a Nonmetal. A binary compound is a compound formed from two different elements.
What are the 4 common features of ionic compounds?
Properties Shared by Ionic Compounds
- They form crystals.
- They have high melting points and high boiling points.
- They have higher enthalpies of fusion and vaporization than molecular compounds.
- They’re hard and brittle.
- They conduct electricity when they are dissolved in water.
- They’re good insulators.
How do you write formulas and names for ionic compounds?
To find the formula of an ionic compound, first identify the cation and write down its symbol and charge. Then, identify the anion and write down its symbol and charge. Finally, combine the two ions to form an electrically neutral compound.
How do you name compounds?
Molecular compounds are named with the first element first and then the second element by using the stem of the element name plus the suffix -ide. Numerical prefixes are used to specify the number of atoms in a molecule.
How do you name molecular and ionic compounds?
A diatomic compound (or diatomic molecule) contains two atoms, which may or may not be the same. Metals combine with nonmetals to give ionic compounds. When naming binary ionic compounds, name the cation first (specifying the charge, if necessary), then the nonmetal anion (element stem + -ide).
What is characteristic of ionic compound?
Ionic compounds have high melting points. Ionic compounds are hard and brittle. Ionic compounds dissociate into ions when dissolved in water. Solutions of ionic compounds and melted ionic compounds conduct electricity, but solid materials do not.
What is the name of an ionic compound that consists of lithium and iodide ions?
Lithium iodide, or LiI, is a compound of lithium and iodine.