Adapted from an image by AIP Emilio Segre Visual Archives, W. F. Meggers Gallery of Nobel Laureates (public domain), via Wikimedia Commons.
1887–1915
Henry Moseley
Showed that every element has an atomic number, which fixed the order of the periodic table; he was killed at Gallipoli in 1915, aged 27.
Elements
- 193743TcTechnetium
- 194561PmPromethium
- 192372HfHafnium
- 192575ReRhenium
Keep exploring
Where the dates and stories on this page come from; each event on the timeline links to its own source.
- Henry MoseleyEncyclopaedia Britannica
- TechnetiumRoyal Society of Chemistry
- PromethiumRoyal Society of Chemistry
- HafniumRoyal Society of Chemistry
- RheniumRoyal Society of Chemistry
- Henry MoseleyWikipedia