How many elements are in the periodic table?
Guess before you scroll — the answer is below
The answer
118 elements
There are 118 confirmed elements. Only the first 94 occur naturally; the rest have been made in laboratories, and the heaviest exist for fractions of a second before falling apart.
How to get close to this number
Anchor on the elements you can name. Common ones run from hydrogen at one up through iron, silver, gold and lead in the high tens, and uranium is in the low nineties. Knowing that uranium is the heaviest naturally occurring element gives you a floor, and the synthetic ones add a couple of dozen more on top.
The distinction in the explanation is the one that matters: only the first ninety-four occur in nature, and the rest exist because someone made them. So the table has two halves — a natural inventory and a human-made extension — and a question about how many elements exist is really a question about which of those two you mean.
The heaviest are barely elements in any everyday sense. They are produced a few atoms at a time in accelerators and decay within fractions of a second, so they have never existed in a quantity anyone could see. The count is formally maintained by an international body that must confirm a discovery before it is added, which is why the number changes rarely and only by ones.
Where this number comes from
| Source | International Union of Pure and Applied Chemistry (IUPAC) |
|---|---|
| Figure refers to | 2024 |
| Last checked | |
| Unit | elements |
Numbers move. If this one has drifted from its source, let us know.
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