For example, water isn’t on the periodic table because it is a compound, not an element. Water is made from the element hydrogen bonded to the element oxygen.

Let’s first consider how the periodic table was developed. By the late 18th century, chemists were clear about the difference between an element and a compound: elements were chemically indivisible ...

Why You Can’t Combine All The Elements Of The Periodic Table In A Single Compound The reason for this impossibility strikes at something fundamental about the nature of reality.

A pure substance made from more than one type of element chemically bonded together. Elements bond in fixed ratios and so can be represented by a chemical formula. For example, sodium chloride has ...

By the late 18th century, chemists were clear about the difference between an element and a compound: elements were chemically indivisible (examples are hydrogen, oxygen) whereas compounds consisted ...