Chemistry

Elements, compounds and mixtures

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Elements Elements are made up of only one type of atom. Each atom in an element must have the same atomic number. All the elements on earth can be found in the periodic table. Each element is given a symbol.   C = Carbon             F= Fluorine               Na = Sodium                K = Potassium   Isotopes An […]
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Elements, compounds and mixtures
Atomic Structure

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The structure of the atom   Fig 1 – Source: Pixabay What is an atom made up of? An atom is made up of a nucleus containing protons and neutrons. Protons have a positive charge and neutrons have no charge. Electrons are found moving around the nucleus in orbitals or shells. They have a negative […]
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Atomic Structure

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