What changed on the site, newest first. Also as an RSS feed.
We took the chapter "Harm to health and the planet" off the site for now. History is now chapter 8.
The site has a new name: Our Elements. It was The Periodic Table of Scarcity and Abundance. The address is now vester.si/our-elements/.
In "Uses", a new chart shows how the uses of an element changed over the years, for Hydrogen, Iron and Cadmium. Iron shows steel shipments in the United States; the others are world figures.
The iron price chart now shows the World Bank price of iron ore from 1960 to 2025, in US dollars of 2010 per kilogram of iron, so it can be compared with the price figure. A dashed line marks 2006, when the series changes from a contract price to a spot price.
In "The atom" on each element page, a new button shows the nucleus: one ball for each proton and neutron, for the most common isotope. Elements with no stable isotope show their longest-lived isotope.
Atomic masses now come from IUPAC, the international body for chemistry. Some masses were rounded too much before; for example, iron is now 55.845, not 55.84. For an element with no stable isotope, its page now gives the mass number of its longest-lived isotope in brackets, for example [209] for polonium.
On a touch screen, the first tap on a tile shows the element under the table, and a second tap opens it.
You can sign up for e-mail. We send an e-mail when we add an element or a chapter. The form is at the bottom of every page and on each element page.
The method page and the changelog are now linked from the footer. The top bar has only Table and Elements.
We no longer show how far the research on an element has gone. The Research lens on the table, the chapter counts and the "not researched yet" notes are gone. On an element page, we list only the chapters that are written. Each page still has the date of its last update.
When you share a page, the link shows a picture: the element tile with its key figures, the chapter title, or the table.
Each element page has a new section, "Related elements": the ores it comes from, the elements that come from its ores, and its group. In a chapter, the first mention of another element links to its page.
On an element page, the elements named on the scales are now links. An element that is a by-product names its host metal, with a link, at the top of the page.
We rewrote the text of Hydrogen, Iron and Cadmium, the "Can I eat it?" notes and the site labels in plainer English. No fact, number or source changed.
A chapter page now has only the date of its last update. We explain on the method page how we check every chapter.
A new design for the whole site. On the table, a quantity now fills each tile from the bottom, on a log scale. We keep color for the chemical families. On each element page, its figures are on scales next to the figures of the other researched elements. A small diagram of its atom is in the corner of its tile. The site is easier to use on a phone. It has a menu button, and an arrow on rows that scroll sideways.
"Can I eat it?" now has a second answer for the pure element, with its sources. Sodium in salt is a nutrient, but sodium metal burns. Done for Hydrogen, Iron and Cadmium so far.
The site is set up: the periodic table, a page for each of the 118 elements, and a list of all elements.
Every element page will answer the same nine questions, one chapter each. They are listed on the method page.
First researched elements: Hydrogen, Iron and Cadmium. Each chapter was written, checked against its sources and audited.
Every element page has a picture of its atom: a shell diagram and the orbitals of its outer electrons.
A new chapter on social and political problems: conflict, workers and communities, and who gains and who loses.
Every citation now has the words from the source that support the claim. Point at a citation number to read them.
A new lens on the table: Can I eat it?. Every element has a verdict, a short note and its sources. They are on the element page.
Hydrogen, iron and cadmium have more sources, a longer history with a timeline, and a list of facts.
All text follows ASD-STE100 (Simplified Technical English): short sentences and common words.