The "two digit periodic table symbol" is also arbitrary - it has to be initial caps! Then if you refresh the page, the random stuff resets, so I gave up at that

The "two digit periodic table symbol" is also arbitrary - it has to be initial caps! Then if you refresh the page, the random stuff resets, so I gave up at that point with !marchpepsidn26n2555VIIVabout where "dn26n" is random captcha.