Which of the following elements would be the most reactive with other elements? Multiple Choice

A. boron, #5
B. neon, #10
C. argon, #18
D. helium, #2

The answer is d helium

Fermentation processes, such as brewing, baking, and cheese and butter manufacturing. Chemical manufacturing, such as the production of ethanol, acetone, organic acids, enzymes, and perfumes. Pharmaceuticals, such as the manufacture of antibiotics, vaccines, and steroids. Energy, in the form of biogas (methane).