Of the possibility that the harmonious order of the elements is a matter of chance, professor of chemistry John Cleveland Cothran observed: “The post - prediction discovery of all of the elements whose existence [Mendeleyev] predicted, and their possession of almost exactly the properties he predicted for them, effectively removed any such possibility.
रिसर्च कॆमिस्ट एल्मर मॉरर कहते हैं, “इन मूल - तत्वों की सुंदर व्यवस्था के पीछे ज़रूर किसी का हाथ है । ”