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Glossary · Science

Chemical element

A pure substance made of one kind of atom, defined by the number of protons in its nucleus. There are 118 known elements.

In Icillion

You will meet chemical element in 4 prompts of Icillion. Of the 190 answers they accept, only 146 reach The Deep or below.

For example

Taken from “Name a chemical element”, the familiar end of the list:

Prompts that use it

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See also

All science terms · The whole glossary

How deep does your knowledge go?

Seven prompts a day, twenty seconds each. Obvious answers float on the tip of the iceberg; rare ones sink all the way to the trench.

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