Chem mod 1 unit 3 what s inside_an_atom

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  • Sub-atomic particles are found within the atom. These include the protons, electrons and neutrons.
  • The protons and neutrons are found inside the nucleus. The electrons orbit the nucleus on shells.
  • The protons and neutrons are found inside the nucleus. The electrons orbit the nucleus on shells.
  • The symbol can also reflect the atomic number and the mass number. The atomic number is found at the bottom left of the symbol and the mass number is located at the top left of the symbol.
  • The symbol can also reflect the atomic number and the mass number. The atomic number is found at the bottom left of the symbol and the mass number is located at the top left of the symbol.
  • The symbol can also reflect the atomic number and the mass number. The atomic number is found at the bottom left of the symbol and the mass number is located at the top left of the symbol.
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  • Chem mod 1 unit 3 what s inside_an_atom

    1. 1. 2008 ENTER
    2. 2. 1. What’s inside an atom?2. Table of Contents3. Introduction4. Structure of the Atom5. Labelled Diagram of an Atom6. Nature of the particles7. Symbol of an Element8. Atomic Number9. Mass Number10.Arrangement of electrons
    3. 3. After viewing this tutorial, you will beable to state the properties of electrons,protons and neutrons.
    4. 4. Atoms have three basic particles: 1. Proton 2. Neutron 3. Electron The protons and neutrons are found inside the nucleus.Key The electrons orbit theProton nucleus on shells.to see labelled ClickNeutron diagramElectron
    5. 5. shell electron protonnucleus neutron Key Proton Neutron Electron
    6. 6. Proton: large with positivecharge +Neutron: large with nocharge 0Electron: small withnegative charge -
    7. 7.  An element is made up of the same kind of atoms. It can be written as a symbol. The symbol is derived from the English or the Latin names of the element. The first letter or the first two letters are used. Click here to see how the symbol of the element Krypton here can be represented. Kr Symbol of Krypton
    8. 8.  The atomic number of an element is found at the bottom left of the symbol. It tells how many protons are in the atom. Click here to see an example. Atomic Number 36 Kr Symbol of Krypton
    9. 9.  The mass number of an element is found at the top left of the symbol. It tells the sum of the number of neutrons and protons found in the nucleus of an atom. Click here to see how the symbol of the element Krypton can be represented. Mass Number 84 Atomic Number 36 Kr Symbol of Krypton
    10. 10.  Electrons are arranged in shells that move around the nucleus situated in the centre of the atom. Shell No. of electrons 1st shell 2 electrons 2nd shell 8 electrons 3rd shell 18 electrons 4th shell 32 electrons

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