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![]() Iridium: The International Prototype of the Kilogram had been used in the definition of mass until May 2019 however, the Planck constant of quantum mechanics is now being used instead.Element families are indicated by numbers located at the top of the periodic table.Īn element family is a set of elements sharing common properties. Iron: The amount of iron found in hijiki seaweed has been revised in the 2016 edition of “Standard Tables of Food Composition in Japan” published by the Ministry of Education, Culture, Sports, Science and Technology.*Certain marks in the AR videos may differ from the print edition.*Information on each element is taken from the 2017 edition of Tokyo Electron’s AR Periodic Table of Elements.*Uses and applications written in the description of each element are examples.*Due to language differences, the design of cards and animations for each element may also be different in English and Japanese versions.*The chemical characteristics of each element are based on the IUPAC (International Union of Pure and Applied Chemistry) agreement.*Figures for atomic weight are based on the “2017 Table of Atomic Weights” edited by the Chemical Society of Japan.Moreover, although the chemical characteristics of oganesson are unknown, it has been color-coded as a noble gas because the element name is in noble gas format. While the chemical characteristics of tennessine are unknown, it has been color-coded as a halogen due to the original element being halogen format. The “state at room temperature” and “classifications for metal/non-metal/metalloid elements” for elements from fermium to oganesson (elements 100 - 118) are estimates (as of April 2017). However, on this table they have been colored as rare earth elements. Scandium and yttrium in Group 3 are also d-block elements. Beryllium and magnesium are sometimes excluded from this group. Open the app, start the AR camera and hold it over the enlarged element card. Scroll to the AR Periodic Table on this page and click an element card to enlarge it. ![]() Viewing the AR Periodic Table from a computer screen
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