Robin - isn't this choice (n=6) arbitrary? If you can divide the 27.196 eV by any small whole number and have a fairly large range of fit then half the periodic table... or maybe more... will be kludged into Mills theory as a hydrino catalyst. It is no wonder that Mills had more high level critics than supporters...
From: "mix...@bigpond.com >https://www.sciencedirect.com/science/article/pii/S0360319918320925 What's the bet that the best metal has a work function of 27.196/n eV, where n is some whole number, the smaller the better? Couple of examples of elements for n=6 (i.e. 4.533 eV):- Mo, Ag, Cu, Sb, W (See https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&ved=2ahUKEwiE1Om7z_reAhUUY48KHRcPBhwQFjADegQIChAC&url=https%3A%2F%2Fpublic.wsu.edu%2F~pchemlab%2Fdocuments%2FWork-functionvalues.pdf&usg=AOvVaw12wvTBAwujb59CHaO2BHai)
