#promethium
Live, measured metrics for the hashtag #promethium from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #promethium
This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.
Day-by-day usage
measured · mastodon.social (Mastodon public tags API) · fetched 2026-10-13 11:53 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · mastodon.social (Mastodon public search API) · fetched 2026-10-13 11:53 UTCLive pulse
measured · mastodon.social (Mastodon tag timeline) · fetched 2026-10-13 11:53 UTCEverything below is measured over the latest 8 public posts (spanning ~67882 hours).
Posting hours (UTC)
Languages: English (5) · Catalan (1) · German (1) · French (1)
Avg boosts / post: 0.4
Top of the latest posts
PROMETHIUM (Finlàndia) presenta nova demo: "Senseless Resurrection" #Promethium #DeathMetal #Juny2026 #Finlàndia #NovaDemo #Metall #Metal #MúsicaMetal #MetalMusic
1945: Promethium - atomic number: 61; weight: 145; Radioactive lanthanoid; discovery: 1945—Charles D. Coryell, Jacob A. Marinsky, Lawrence E. Glendenin #Poetry #Science #History #Promethium (https://sharpgiving.com/Sharp/thebookofscience/it
Chemischer Meilenstein: 80 Jahre nach seiner Entdeckung haben Chemiker die Geheimnisse des extrem seltenen Elements Promethium gelüftet. #Chemie #Promethium #Lanthanoid https://www.scinexx.de/news/technik/element-promethium-eingefangen/
What “promethium” means
WikipediaPromethium is a generally synthetic chemical element; it has symbol Pm and atomic number 61. All of its isotopes are radioactive; it is extremely rare, with only about 500–600 grams naturally occurring in the Earth's crust at any given time. Promethium is one of only two radioactive elements that are both preceded and succeeded in the periodic table by elements with stable forms, the other being technetium. Chemically, promethium is a lanthanide. Promethium shows only one stable oxidation state
“Promethium” on Wikipedia (CC BY-SA) →#promethium across platforms
every network with a public tag surfaceFollow #promethium straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/promethium