@Test
public void water_Atom() throws Exception {

    IAtom a = new Atom("O");
    a.setImplicitHydrogenCount(2);
    assertThat(new CDKToBeam().toBeamAtom(a).element(), is(Element.Oxygen));
    assertThat(new CDKToBeam().toBeamAtom(a).hydrogens(), is(2));
}