class Atom extends AtomType implements IAtom, Serializable, Cloneable {

    @Override
    public Integer getImplicitHydrogenCount() {
        return this.hydrogenCount;
    }

    public  Atom();
    public  Atom(int elem);
    public  Atom(int elem, int hcnt);
    public  Atom(int elem, int hcnt, int fchg);
    public  Atom(String symbol);
    public  Atom(String elementSymbol, Point3d point3d);
    public  Atom(String elementSymbol, Point2d point2d);
    public  Atom(IElement element);

}