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How to draw atoms. An atom is the smallest part of an element. Particle Charge Mass Proton Electron Neutron. 1. +. -. 1/2000. 0. 1. How to find protons electrons and neutrons. Mass Number. 7. Li. 3. Proton number. Bottom number. P E n. Bottom number. Top - Bottom number.
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How to draw atoms An atom is the smallest part of an element Particle Charge Mass Proton Electron Neutron 1 + - 1/2000 0 1
How to find protons electrons and neutrons Mass Number 7 Li 3 Proton number Bottom number P E n Bottom number Top - Bottom number
Need to know how to draw the first 20 atoms Nucleus 2,8,8
Ions Non-metals Metals Positive!!! Negative
Ionic bonding Metal and a non-metal + - Li F
Ionic structure • Draw out sodium dots. • Draw out fluorine Crosses. • Work out electron movement • Re-draw ions together. • Write the formula.
Sodium Fluoride + - Na F
More than one!! Other elements like oxygen need 2 Electrons.
Sodium Oxide 2 O Na Na 2
Beryllium gives 2 electrons. 2 - 2+ - F Be F 2 Beryllium fluoride.
Draw out the following • KF • LiCl • Li2O • BeCl2 • MgF2