What scientific thing has the letter e in it?

Seeing that you are dealing with chemistry and the elements , let e = electron.

Chemistry is all about electron interactions, so 'e' for an electron is appropriate.

E = mc² is a nuclear physics formula, calculating the consumption of matter to produce energy. So I think this is really wrong to use. Chemistry does not affect the core of the nucleus of the atom so E = mc² is wrong.

However, E also stands for just plain energy and Chemistry runs on energy levels!

Beaker....................

Ethanol... one of my favorite 'E's

"SCIENCE"

The "E" keeps you from using chemical symbols for the letters, but you can still simply go with the first letter of the element name

S ... Sulfur

C ... Carbon

I ..... Iodine

E .... Einsteinium

N .... Nitrogen

C .... Calcium

E .... Europium

Sticking with the element theme, I would use Er (erbium, a rare earth element).

There is no element E, or even Ie so you'd have to go with Energy as in E = mc²

Energy, exothermic, entropy.

Energy as in E = mc²?

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