th electron is bound in a new type of orbit, and a closer consideration shows that this will be a
orbit. The points which were emphasized in connection with the binding of the last electron in the sodium atom will be even more marked here on account of the larger quantum number by which the orbits of the inner electrons are characterized. In fact, in the potassium atom the
orbit of the
th electron will, as far as inner loops are concerned, coincide closely with the shape of a
orbit. On this account, therefore, the dimensions of the outer part of the orbit will not only deviate greatly from the dimensions of a