AtomType 
Class representing an atom type.
- Properties:
 
- 
 
- System
 
- -  The system which the Atom Type belongs to
	
 
- Number
 
- -  Serial number of the atom type
	
 
- Atoms
 
- - List of Atoms belonging to this AtomType
	
 
- Charge
 
- - Charge of the atom-type as average over charges of all atoms of the type in a.u.
	
 
- Mass
 
- - Mass of the atom-type as average over masses of all atoms of the type in a.u.
 
- 
 
- Methods:
 
- 
 
- WriteAsRDFinp()
 
- - Return a string representation of AtomType for RDF.inp
	
 
- AddAtom(atom)
 
- - Add atom to the AtomType