public void RemoveZeroIsotopeFromFromula()
{
ChemicalFormula formulaA = new ChemicalFormula("C2H3NO");
ChemicalFormula formulaB = new ChemicalFormula("C2H3NO");
formulaA.Remove(PeriodicTable.GetIsotope("H", 1), 0);
Assert.AreEqual(formulaA, formulaB);
}