chapter 6 Flashcards
what happens in a chemical reaction between metals and nonmetals?
-4 things
- the metal gives electrons to the nonmetal
- an anion and cation form
- opposite charges attract to form an ionic interaction
- an ionic compound is formed
Ionic compounds
- what does it consist of
- what are the attractions called
- melting and boiling points
- what are they at room temp
- positive and negative ions
- ionic interactions between positive and negative ions
- both high
- solid
Ionic formula
- 3 things
- formula
- consists of positive and negative ions
- neutral
- charge balance
- total positive charge = total negative charge
Nonmenclature rules
tell us how to name compounds
Naming ionic compounds with metals that form a single ion
-4 steps
- identify the cation and anion
- name the cation by its element name
- name the anion by using the first syllable of its element name follow by -ide
- Write the name of the cation first and the name of the anion second
What are cations?
metals
what are anions?
non metals
1A metals form what charge
+1
2A metal form what charge
+2
Al forms what charge
+3
Zn forms what charge
+2
Ag forms what charge
+
how many ions do the transition metals form
2 or more positive ions
when do you use roman numerals?
name of transition metals with 2 or more positive ions (cations)
- FeCl2
- Fe2O3
- Cu3P
- CuBr2
- SnCl2
- PbS2
- Iron (II) chloride
- Iron (III) oxide
- Copper (I) Phosphide
- Copper (II) bromide
- Tin (II) chloride
- Lead (IV) sulfide
polyatomic ion
- group of atoms that share electrons only within the group
- has an overall ionic charge
the formula of an ionic compound
- containing a polyatomic ion
- with two or more polyatomic ions
- must have a charge balance that equals zero
- has the polyatomic ions in parenthesis
when do ions form
when an element with small ionization energy (metal) reacts with element with large electron affinity (nonmetal)
