1. Science ACE: Gold
LeeXuanHong1A109

2. Overview Gold in the periodic table About gold Properties of gold
Uses of gold
Units for gold

3. Gold in the periodic table
Group 11
Period 6
Gold

4. About gold A yellow metallic element Transitional metal
Atomic Symbol: Au Atomic Number: 79 Atomic Mass: 197(3s.f)

5. Properties of gold High boiling and melting point
Boiling point: 3080Kelvin Melting Point: 1338Kelvin
Most ductile of all metals
Most malleable of all metals
Soft
Very unreactive
Malleability: Ability to be flattened into sheets Ductility : Ability to be drawn into wires

6. Uses of gold
Gold is mainly used for making jewellery as it is a very unreactive metal. Thus, they remain shiny and attractive.
Gold does not oxidise, rust, corrode and tarnish, which is why gold is so expensive.

7. Units for gold/ K ALLOY Any gold lesser than 24k is an
K stands for karat.
Used to measure the purity of gold.
24k gold means pure or solid gold.(100% gold)
18k gold means 75% pure gold(18/24 gold). The remaining 25%(6/24) is made up of other metals such as silver.
Any gold lesser than 24k is an
ALLOY

8. Acknowledges Pictures taken from:
-Google Images -
Info. taken from:
-answers.yahoo.com
-oldgold.info/gold-karat.html -
-Google

9. ~~~Thank You~~~