Haughton — Notes on Newtonian Chemistry. 633 
the hydrogen atom, and to the angular velocity of the orbital motion, 
then we have 
attraction = /^t 
{11) 
centrifugal force = (aHa. 
Equating these, we find — 
= 
2 
(1) 
2. The Chlorine Molecule. — The type of the Chlorine Molecule 
is the same as that of the Hydrogen Molecule, with the exception 
Fig. 2. 
that the orbital motion is reversed.^ 
If now, 
fii = attraction coefficient of ClCl, 
I = radius of chlorine molecule orbit, 
wi = angular velocity of chlorine molecule orbit, 
p = mass of chlorine ; 
A^i = -^. (2) 
3. The Molecule of Sydrochloric Acid. — The type of the HCl 
molecule is different from that of the HH and ClCl molecules, 
because the masses of the atoms are unequal. 
then 
^ The reason why this is necessary will be shown further on. 
