Regex for Finding Non-Radioactive Elements Find the shortest regex that matches all non-radioactive elements and nothing else in the Periodic Table of Elements. This is the inverse of Regex for Finding Radioactive Elements

Radioactive Elements

'Technetium','Promethium','Polonium','Astatine','Radon','Francium','Radium','Actinium','Thorium','Protactinium','Uranium','Neptunium','Plutonium','Americium','Curium','Berkelium','Californium','Einsteinium','Fermium','Mendelevium','Nobelium','Lawrencium','Rutherfordium','Dubnium','Seaborgium','Bohrium','Hassium','Meitnerium','Darmstadtium','Roentgenium','Copernicium','Ununtrium','Flerovium','Ununpentium','Livermorium','Ununseptium','Ununoctium'


Non-radioactive Elements

'Hydrogen','Helium','Lithium','Beryllium','Boron','Carbon','Nitrogen','Oxygen','Fluorine','Neon','Sodium','Magnesium','Aluminium','Silicon','Phosphorus','Sulphur','Chlorine','Argon','Potassium','Calcium','Scandium','Titanium','Vanadium','Chromium','Manganese','Iron','Cobalt','Nickel','Copper','Zinc','Gallium','Germanium','Arsenic','Selenium','Bromine','Krypton','Rubidium','Strontium','Yttrium','Zirconium','Niobium','Molybdenum','Ruthenium','Rhodium','Palladium','Silver','Cadmium','Indium','Tin','Antimony','Tellurium','Iodine','Xenon','Caesium','Barium','Lanthanum','Cerium','Praseodymium','Neodymium','Samarium','Europium','Gadolinium','Terbium','Dysprosium','Holmium','Erbium','Thulium','Ytterbium','Lutetium','Hafnium','Tantalum','Tungsten','Rhenium','Osmium','Iridium','Platinum','Gold','Mercury','Thallium','Lead','Bismuth'



Scored by character count in the regex.
Use standard Perl regex (just no specialized functions).
Assume all lower case.
You only need to count the characters of the regex itself.


Note if you used a program to get you started and maybe post how well it did. I'll post my best attempt as an answer to get started/show an example.

Edit:
Apparently Bismuth is radioactive, but since I'm assuming the universe would die from heat death before it was ever much of a problem I'm not going to worry about it now.
Character count 94

y|^v|h.[lfdn]|^t[^eh]|[^te]i[rodnts]|[lp].t[^o]|ru?[bs]|ll|^..ro|^[^r][^u].{1,4}$|ca..i|ma|s.l