1.16 Activity 1. Three types of carbon atom Students should: 1.16 know what is meant by the terms atomic number, mass number, isotopes and...
We think that stone age / bronze age man discovered iron by accident . Man must have used fire and probably had a firepit which was used every da...
All these solutions contain transition metal compounds
Colourful compounds Many transition metals have ions which have strong characteristic colours. For example: copper and iron. The metal copp...
If a nucleus was the size of a raisin, the rest of the atom would be the size of a sports stadium
Solid, liquid or gas?
1.1 Introducing the states Matter can exist in one of three fundamental states: Solid, Liquid or Gas Here we consider the way in which these thr...
Fireworks get their colours from the metal cations in them
2.45 - 2.46 Up in flames Fireworks produce a whole range of different colours. All fireworks release energy in the form of heat energy and are t...
More than 75% of the elements in the periodic table are metals. Metals are extremely useful materials with a wide variety of uses. This is d...
Flame colours can help to identify the metal ion in a compound
Flame tests can be used to identify some metal ions (cations).Lithium, sodium, potassium, calcium and copper compounds producedistinctive colours in fl...
Rust forms on iron and steel as a result of a redox reaction between iron and oxygen.
2.15 - 2.20 Loss and gain Oxidation and reduction reactions are very commonplace. When a element combines with oxygen that element is said to ha...
Ionic compounds form when the atoms of a metal combine with the atoms of a non - metal