The graphic in this article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. It’s probably of more use to the chemists out there than for general interest still, if you are curious as to what it depicts, there’s more detail in the original post.Įnjoyed this post & graphic? Consider supporting Compound Interest on Patreon, and get previews of upcoming posts & more! This last one shows the various known oxidation states for the different elements in the periodic table. The Periodic Table of Oxidation States Click to enlarge This table, made in collaboration with the American Chemical Society’s Green Chemistry Institute, takes a look at the elements considered to be most at risk. While we will not ever truly run out of an element, some are considered endangered in the sense that in the future they may be too spread out and costly to extract. Not all of the elements in the periodic table are plentiful. The Periodic Table of Endangered Elements Click to enlarge This table looks at a selection of these ‘rejected’ element names. Past elements, too, have been subject to naming variations, be it due to simultaneous discoveries, language differences, or scientific squabbles over the right to name the element in question. The Periodic Table of Rejected Element Names Click to enlargeįor elements discovered more recently, a catalogue of names have been seriously and not-so-seriously suggested before the official names were confirmed. There’s also an accompanying explanatory poster on why some elements have symbols that don’t match up with their names. Mark Lorch from the University of Hull, tries to pin down where those names come from. This table, created in collaboration with Prof. The origins of the elements’ names are varied both in terms of language and in terms of what they were named after. The Periodic Table of Element Name Origins Click to enlarge It’s also colour-coded to show how these properties vary from element to element.ĭownload this table and find out more about it here. It includes the melting point, boiling point, density, electronegativity, radius, and first ionisation energy of each element in the table. Here’s a periodic table that’s crammed with data. The Periodic Table of Data Click to enlarge I say ‘completed’ because scientists are still trying to create elements beyond element 118, so in years to come an extra row may be required to accommodate new element entries. Four new elements had their discoveries and names confirmed in 2016, and replaced the last few placeholder positions in the table. The periodic table has actually only just been ‘completed’ in the past year. The Complete Periodic Table of Elements Click to enlarge To mark the occasion here are a selection of periodic tables I’ve made over the past few years, which include a serious look at element properties, and a not-so-serious look at the names for newly-discovered elements that were rejected over the years. By happy coincidence it’s also only a day before the birthday of Dmitri Mendeleev, the scientist most famously associated with the periodic table. February 7 was picked because it marks the date on which John Newlands’ first periodic table of elements was published way back in 1863. You could be forgiven for not knowing – it was actually only ‘founded’ in May 2015, so this is only the second time it’s rolled around. Today, February 7, is National Periodic Table Day.
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