Chemical Bonding

What are two or more chemically combined elements called?

compounds

What tells you the elements and how many of each element there are in a compound?

chemical formula

What is a charged atom called?

ion

What is the charge of an ion called?

oxidation number

What is a covalently bonded group of atoms that is charged called?

polyatomic ion

Al₂O₃

Aluminum oxide

K₃PO₄

Potassium Phosphate

HgClO₃

Mercury (I) Chlorate

N₂O

Dinitrogen monoxide

CuSO₄

Copper (II) sulfate

Strontium bromide

SrBr₂

Zinc (II) phosphide

Zn₃P₂

Sulfur hexachloride

SCl₆

Dinitrogen tetroxide

N₂O₄

Lead (IV) carbonate

Pb(CO₃)₂

Why do elements form compounds?

to be stable

What will magnesium do to become stable?

lose 2 electrons

What is the overall charge of an ionic compound?

0

Draw an electron dot structure for calcium fluoride.

Draw an electron dot structure for the bond that would form between hydrogen and oxygen.

The properties of a compound are    the properties of the elements that make it up.

Different from

What types of elements form covalent bonds?

Nonmetals

What happens to the electrons in an ionic bond?

They are transferred

When an atom loses an electron its charge is    and it is called a(n)   .

Positive; cation

Draw the electron dot structure for the bond that would form between silicon and oxygen.

Draw the electron dot structure for HCN.

Ammonium

NH₄⁺¹.

Nitrate

NO₃⁻¹

Hydroxide

OH^-1

Phosphate

PO4-3

Sulfate

SO₄^-2

Acetate

C₂H₃O₂⁻¹

Chlorate

ClO3 −1