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How to draw atoms ParticleChargeMass Proton Electron Neutron An atom is the smallest part of an element + - 0 1 1 1/2000.

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Presentation on theme: "How to draw atoms ParticleChargeMass Proton Electron Neutron An atom is the smallest part of an element + - 0 1 1 1/2000."— Presentation transcript:

1 How to draw atoms ParticleChargeMass Proton Electron Neutron An atom is the smallest part of an element + - 0 1 1 1/2000

2 How to find protons electrons and neutrons Li 3 7 Proton number Mass Number PEnPEn Bottom number Top - Bottom number

3 Need to know how to draw the first 20 atoms Nucleus 2,8,8

4 Ions Metals Non-metals Positive!!! Negative

5 Ionic bonding LiF +- Metal and a non-metal

6 Ionic structure Draw out sodium dots. Draw out fluorine Crosses. Work out electron movement Re-draw ions together. Write the formula.

7 NaF +- Sodium Fluoride

8 More than one!! Other elements like oxygen need 2 Electrons.

9 Sodium Oxide 2 Na O 2

10 Be F 2+2+ - F - 2 2 Beryllium gives 2 electrons. Beryllium fluoride.

11 Draw out the following KF LiCl Li 2 O BeCl 2 MgF 2

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