Episode 3 of 3

Naming of Helium

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Norman Lockyer identifies the D3 spectral line and proposes helium

Lockyer named the proposed unknown element helium, derived from the Greek word for the Sun.

Lockyer named the element helium, from the Greek word for the Sun, helios. This naming followed the identification of the spectral line as a signature of an unknown element in sunlight. The passages do not state the date on which the naming occurred.

Sources

  1. Helium Wikipedia, revision of 2026-10-01

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.