#roentgenium

Live, measured metrics for the hashtag #roentgenium from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.

hashtag.org network · sponsored

Own #roentgenium

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.

$10.85/ year · 11-character #name
Claim #roentgenium — $10.85/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
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Uses / 7 days
Mastodon
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Accounts / 7 days
Mastodon
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Recent posts
Mastodon
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Recent pace
Mastodon · last 0
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Avg reactions / post
Mastodon · last 0
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Reddit posts / month
Reddit search
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Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mastodon.social (Mastodon public tags API) · fetched 2026-10-09 04:17 UTC

No measured public usage for #roentgenium in the last 7 days. That is a real result, and a good one to know: this hashtag is wide open right now. We show a dash before we ever show a made-up number. Browse the trending index for tags with live measurements.

Related hashtags

measured · mastodon.social (Mastodon public search API) · fetched 2026-10-09 04:17 UTC

No related tags with measured usage found for #roentgenium.

Live pulse

measured · Mastodon tag timeline · fetched 2026-10-09 04:17 UTC

No recent public posts found for #roentgenium on Mastodon. Nothing measured, so nothing shown.

What “roentgenium” means

Wiktionary · Wikipedia

roentgenium/ɹʌntˈɡɛniəm/

  • nounA transuranic chemical element (symbol Rg) with atomic number 111.
Full entry on Wiktionary →

Roentgenium is a synthetic chemical element; it has symbol Rg and atomic number 111. It is extremely radioactive and can only be created in a laboratory. The most stable known isotope, roentgenium-282, has a half-life of 130 seconds, although the unconfirmed roentgenium-286 may have a longer half-life of about 10.7 minutes. Roentgenium was first created in December 1994 by the GSI Helmholtz Centre for Heavy Ion Research near Darmstadt, Germany. It is named after the physicist Wilhelm Röntgen, wh

“Roentgenium” on Wikipedia (CC BY-SA) →

#roentgenium across platforms

every network with a public tag surface

Follow #roentgenium 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/roentgenium