Welcome to Chemistry

Chemistry is the study of chemicals. What use is this? you may ask. Well, when you realize everything is made of some chemical or another, you begin to see it. And knowing how to manufacture useful chemicals can make you very rich as well as benefit society.

The Atom

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"An isotope is merely where you have different chemicals of the same element, but have different numbers of neutrons. ie. the atomic numbers are the same, but the mass numbers are not. On the periodic table, the..." See the atom

Halogens

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"Disproportionation means a reaction where one species (in this case chlorine) is simultaneously oxidised and reduced. If you have a look at chlorine in HCl it has an oxidation number of -1 and in hydrogen chlorate. This ..." See halogens

Noble Gases

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"Probably the most famous noble gas is Helium, as it is used in balloons. This is because it 'floats' due to the fact it is less dense than air, so rises above it, and is completely safe since it is unreactive. However, the ..." See noble gases.