How to draw atoms ParticleChargeMass Proton Electron Neutron An atom is the smallest part of an...
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How to draw atoms Particle Charge Mass Proton Electron Neutron An atom is the smallest part of an element + - 0 1 1 1/2000
Transcript of How to draw atoms ParticleChargeMass Proton Electron Neutron An atom is the smallest part of an...
How to draw atoms
Particle Charge Mass
ProtonElectronNeutron
An atom is the smallest part of an element
+-0 1
11/2000
How to find protons electrons and neutrons
Li3
7
Proton number
Mass Number
PEn
Bottom numberBottom numberTop - Bottom number
Need to know how to draw the first 20 atoms
Nucleus
2,8,8
Ions
Metals
Non-metals
Positive!!!
Negative
Ionic bonding
Li F+ -
Metal and a non-metal
Ionic structure
• Draw out sodium dots.
• Draw out fluorine Crosses.
• Work out electron movement
• Re-draw ions together.
• Write the formula.
Na F+ -
Sodium Fluoride
More than one!!
Other elements like oxygen need 2 Electrons.
Sodium Oxide
2
Na
Na
O
2
Be F2+ -F -
2
2
Beryllium gives 2 electrons.
Beryllium fluoride.
Draw out the following
• KF
• LiCl
• Li2O
• BeCl2• MgF2