Naming compounds and ions

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1

Slide 1

Naming Compounds, cations and anions

Slide 2

Elements and symbols that you should know

Part 1 – The obvious ones:

Hydrogen

Helium

Lithium

Beryllium

Boron

Carbon

Nitrogen

Oxygen

Fluorine

Neon

Magnesium

Aluminium

Silicon

Phosphorus

H

He

Li

Be

B

C

N

O

F

Ne

Mg

Al

Si

P

Slide 3

Some more obvious ones:

Sulphur

Chlorine

Argon

18) Calcium

19) Zinc

The less obvious ones:

Sodium

Potassium

Iron

Copper

Silver

6) Tin

7) Gold

8) Mercury

9) Lead

S

Cl

Ar

Ca

Zn

Na

K

Fe

Cu

Ag

Sn

Au

Hg

Pb

Slide 4

Polyatomic ions

(-1 charge)

H2PO4 DiHydrogen phosphate

C2H3O2 Acetate

HSO3 Hydrogen Sulfite

HCO3 Hydrogen Carbonate

NO2 Nitrite

NO3 Nitrate

CN Cyanide

OH Hydroxide

MnO4 Permanganate

ClO Hypochlorite

ClO2 Chlorite

ClO3 Chlorate

ClO4 Perchlorate

Slide 5

Polyatomic ions (-2 charge)

HPO4 Hydrogen Phosphate

C2O4 Oxalate

SO3 Sulfite

SO4 Sulfate

CO3 Carbonate

CrO4 Chromate

Cr2O7 Dichromate

SiO3 Silicate

Slide 6

Polyatomic ions (-3 charge)

PO3 Phosphite

PO4 Phosphate

Slide 7

Rule 1– If two identical elements combine then the name doesn’t change

Slide 8

Slide 9

Potassium + hydrogen + oxygen

Lithium + hydrogen + oxygen

Calcium + hydrogen + oxygen

Mg(OH)2

Slide 10

Slide 11

Covalent formulae

Ionic formulae

H2O

CO2

NH3

H2

O2

N2

SO2

Water

Carbon dioxide

Ammonia

Hydrogen

Oxygen

Nitrogen

Sulphur dioxide

NaCl

CaCl2

MgO

HCl

H2SO4

HNO3

NaOH

Ca(OH)2

CaCO3

Al2O3

Fe2O3

Sodium chloride

Calcium chloride

Magnesium oxide

Hydrochloric acid

Sulphuric acid

Nitric acid

Sodium hydroxide