How to draw atoms. An atom is the smallest part of an element. ParticleChargeMass 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
Top - Bottom number
Need to know how to draw the first 20 atoms
Metal and a non-metal
Other elements like oxygen need 2
Beryllium gives 2 electrons.