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The Structure of the Atom.
Member rating: No Rating | Words: | Submitted: Mon Jun 28 2004
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The Structure of the Atom. Basic Atomic Particles : Atoms are made up of the following particles : Protons : Protons are positively charged particles with a mass of one atomic mass unit. They are found in the nucleus at the centre of the atom structure. Neutrons : Neutrons are not charged and have a mass of one atomic mass unit. They are found, with protons at the centre of the atom. Electrons : Electrons are negatively charged particles with a mass of 1/1846th of an atomic mass unit. They are arranged in shells around the central nucleus. Useful definitions for atomic structure : Atomic number (Z) : The number of protons in the nucleus of an atom but is also equal to the number of electrons in the same atom (because atoms don't carry an overall charge - the positives balance the negatives!). Mass Number, (A) (or atomic mass) : The number of neutrons and protons in...
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