March 28, 2026
Periodic table? More like periodic drama
Show HN: PeriodicTableOfElements.org
New Periodic Table site sparks AI drama, copy claims, and mobile gripes
TLDR: A new interactive periodic table website launched, letting users color elements by properties and discovery year. Commenters clashed over AI transparency and data sourcing, while others flagged mobile issues and requested pro features—turning a simple science tool into a debate about credit, craft, and what counts as good work.
A shiny new website, PeriodicTableOfElements.org, lets you color the periodic table by category, state of matter, how “sticky” elements are to electrons, size, and even the year they were discovered. It’s the kind of classroom poster turned clickable toy that Show HN (a “show us your project” forum) usually loves. But the biggest reaction wasn’t to the elements—it was to the comments.
The hottest thread? AI transparency vs. hand‑built pride. One user demanded an AI disclosure, saying they don’t want to critique a robot’s homework without knowing it. Another pushed back, shrugging off the telltale “vibe coding” look and asking the room: if it works and it’s new to many of us, why gatekeep? Meanwhile, a sharp‑eyed commenter asked where the data actually came from, pointedly phrased as “where you copied from,” turning a simple chemistry demo into a provenance probe.
Elsewhere in the lab, the practical crowd chimed in: one phone user called the tap experience “janky” on mobile, while a geochemist begged for pop‑up details and linked a wish list of features from railsback.org. And of course, the memes bubbled—jokes about the site being in a “noble gas state” (pretty, but not reacting to taps) and quips that the real reaction here is exothermic. Verdict: a neat science toy ignited a very 2026 argument—who built it, what was copied, and does it matter if it’s fun?
Key Points
- •The site lists all 118 chemical elements with atomic number, symbol, name, and atomic weight.
- •A legend shows chemical categories (e.g., alkali metals, noble gases, lanthanides, actinides, unknown).
- •Display options include color-by modes for Category, Block (s/p/d/f), State of Matter, Electronegativity, Atomic Radius, Ionization Energy, and Discovery Year.
- •A temperature readout of 298 K is shown, relevant to the State of Matter display.
- •Lanthanides and actinides are indicated with footnotes and separated from the main table layout.