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Representing atoms

Atoms Molecules Ions Chemical Equations On-line practice

 

 

Notation used to represent an atom :

 

 

 

 

 

 

 

Atomic number (Z) = Number of protons in the nucleus (proton number)

Neutron number (N) = Number of neutrons in the nucleus

Mass number (A) = Total number of protons + neutrons in the nucleus

 

What are atoms made of ] Structure of atom ] [ Representing atoms ] Electron arrangement in atom ] Isotopes ]