1. The Periodic Table

2. ELEMENTS 1 There are more than 100 elements in the world.
The Periodic Table charts these elements.

3. Each element is represented by a symbol
ELEMENTS 2
Each element is represented by a symbol

4. Solids / liquids / gases
CLASSIFICATION
Elements can be thought of in a number of different ways:
Solids / liquids / gases
Metals / non-metals
Natural / Synthetic
Chemical properties

5. SOLIDS / LIQUIDS / GASES

6. METALS / NON-METALS
metals
non-metals

7. NATURAL / SYNTHETIC About 90 elements are found naturally on Earth
Elements 43, 61, 87 and those beyond 92 are man-made

8. CHEMICAL PROPERTIES 1 2 3 4 5 6 7
Elements organised into families according to chemical properties

9. GROUPS 1 2 3 4 5 6 7 Transition Metals Halogens Alkali Metals
Transition Metals
Halogens
Alkali Metals
Alkaline Earth Metals
Noble Gases

10. PERIODS
A PERIOD shows a graduation in chemical properties

11. True or False False False False True False True False True False False
1. Calcium is a non-metallic element.
2. The chemical symbol for calcium is C.
3. Beryllium is in the same period as calcium.
4. Group 7 in the periodic table is known as the Halogens.
5. Group 0 in the periodic table is known as the Alkali Metals.
6. Chlorine is in the same group as iodine.
7. Nitrogen is in the same group as oxygen.
8. Sodium has similar chemical properties to lithium.
9. Iodine is a liquid at room temperature.
10. Iron is an Alkali Metal.
11. The melting-point of silicon is 1410 C.
12. Phosphorus is a liquid at 100 C.
13. Bromine is a solid at –10 C.
14. The melting point of the Alkaline Earth Metals decreases down the group.
15. Plutonium is a naturally occurring element.
False
False
True
False
True
False
True
False
False
True
False
True
True
False