Atom or group of atoms that has a charge.
A group of atoms that has a charge
Order of Charges
1+ 2+ 3+ 4+/4- 3- 2- 1-
Attraction between ions of opposite charge.
Compound of negative and positive ions
Charge of Ionic Compounds
Positive or Negative First in Ionic Compound Formula?
Properties of Ionic Compounds
Hard, brittle, solid, high melting points, can conduct electric current if dissolved.
Ionic Compound- Has alternating makeup pattern
Bond in which electrons are shared
How are covalent bonds held together?
Nucleus "wants" the shared electrons, force holds the bond in place.
Neutral group of atoms joined by a covalent bond.
Compound composed of molecules
Properties of Molecular Compounds
Low melting points and boiling points, don't conduct current when dissolved. Don't conduct well in general.
If valence electrons aren't shared equally?
Some electrical charge.
Equal Sharing of Electrons
Mixture of elements, 2 or more, one must be a metal. Stronger and less reactive that pure metals.
How metal atoms combine?
Regular patterns, valence electrons can move around on their own.
Attraction between positive metal ion and the sea of electrons surrounding it (sea is negative, so bond is formed).
Metallic Bonds Prop List
Because of sea of electrons... Malleable, Ductile, Luster, High Electrical Conductivity, High Thermal Conductivity (for solids).