the.com/krypton

The noble gas that only shows up to the party when you trap it and shock it with electricity.

means A colorless, odorless noble gas, number 36 on the periodic table, that glows a pale light when electrified inside a sealed tube.

from From Greek 'kryptos,' meaning 'hidden' — the same root that gives us 'cryptic' and 'crypt.' Discovered in 1898 by chemists William Ramsay and Morris Travers, who found it lurking as a tiny residue left behind after they evaporated nearly all the components of liquid air. It had been hiding in plain sight, in every breath, waiting to be boiled out.

name origin
greek for hidden, because it basically hid from chemists
superman link
borrowed, not scientific, superman predates its fame
reactivity
so inert it barely bothers forming compounds
everyday use
glows in some camera flashes and high end windows
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