Exercise book Chemistry

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  • Created on: 06-10-12 11:55

Atomic Structure

Atom- The smallest particle that makes up an element

Compound- Made up of 2 different elements

Molecule- two or more different or same element chemically bonded

Element- one type of atom

  • Ionic compound makes a covalent molecule. An atom is made up of protons, electron and neutrons. Protons and neurons are found in the nucleus, electrons are found in the shells orbiting it. Protons are positive with a mass of +1, Neutrons are neutral with a mass of +1, Electrons are negative with a mass of 0. For any atom the proton number is always equal to electrons, therefore the element doesn't carry a charge.
  • The periodic table is arranged


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