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Glossary · Chemistry

Halogen

An element of periodic-table group 17: fluorine, chlorine, bromine, iodine, astatine and tennessine. They react readily to form salts.

Where it comes up

You will meet halogen in 1 prompt of Icillion. Of the 13 answers they accept, only 7 reach The Deep or below.

Examples

Answers to “Name an element in periodic-table group 17 or 18”, the familiar end of the list:

Trivia prompts about halogen

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See also

All chemistry 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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