Chemistry
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![A gold nugget](https://cdn.mos.cms.futurecdn.net/gwavbWSqZFoTpZpdqMGQU6-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/gwavbWSqZFoTpZpdqMGQU6-450-80.jpg 450w, https://cdn.mos.cms.futurecdn.net/gwavbWSqZFoTpZpdqMGQU6-500-80.jpg 500w, https://cdn.mos.cms.futurecdn.net/gwavbWSqZFoTpZpdqMGQU6-650-80.jpg 650w, https://cdn.mos.cms.futurecdn.net/gwavbWSqZFoTpZpdqMGQU6-840-80.jpg 840w, https://cdn.mos.cms.futurecdn.net/gwavbWSqZFoTpZpdqMGQU6-970-80.jpg 970w, https://cdn.mos.cms.futurecdn.net/gwavbWSqZFoTpZpdqMGQU6-1024-80.jpg 1024w, https://cdn.mos.cms.futurecdn.net/gwavbWSqZFoTpZpdqMGQU6-1200-80.jpg 1200w)
Gold: Facts, history and uses of the most malleable chemical element
By Stephanie Pappas published
Here's a look at the chemical element gold, including its properties, atomic structure and history.
![Periodic Table of Elements.](https://cdn.mos.cms.futurecdn.net/JXnK7F5CpiPpU64rLa8tUM-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/JXnK7F5CpiPpU64rLa8tUM-450-80.jpg 450w, https://cdn.mos.cms.futurecdn.net/JXnK7F5CpiPpU64rLa8tUM-500-80.jpg 500w, https://cdn.mos.cms.futurecdn.net/JXnK7F5CpiPpU64rLa8tUM-650-80.jpg 650w, https://cdn.mos.cms.futurecdn.net/JXnK7F5CpiPpU64rLa8tUM-840-80.jpg 840w, https://cdn.mos.cms.futurecdn.net/JXnK7F5CpiPpU64rLa8tUM-970-80.jpg 970w, https://cdn.mos.cms.futurecdn.net/JXnK7F5CpiPpU64rLa8tUM-1024-80.jpg 1024w, https://cdn.mos.cms.futurecdn.net/JXnK7F5CpiPpU64rLa8tUM-1200-80.jpg 1200w)
Periodic Table of Elements
By Tim Sharp, Jeanna Bryner published
The Periodic Table, first created by Dmitri Mendeleev, organizes all of the known elements in an informative array.
![This image represents the new isotope, magnesium-18.](https://cdn.mos.cms.futurecdn.net/EKWEtbJ6yXmauMuef5XcP-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/EKWEtbJ6yXmauMuef5XcP-450-80.jpg 450w, https://cdn.mos.cms.futurecdn.net/EKWEtbJ6yXmauMuef5XcP-500-80.jpg 500w, https://cdn.mos.cms.futurecdn.net/EKWEtbJ6yXmauMuef5XcP-650-80.jpg 650w, https://cdn.mos.cms.futurecdn.net/EKWEtbJ6yXmauMuef5XcP-840-80.jpg 840w, https://cdn.mos.cms.futurecdn.net/EKWEtbJ6yXmauMuef5XcP-970-80.jpg 970w, https://cdn.mos.cms.futurecdn.net/EKWEtbJ6yXmauMuef5XcP-1024-80.jpg 1024w, https://cdn.mos.cms.futurecdn.net/EKWEtbJ6yXmauMuef5XcP-1200-80.jpg 1200w)
Scientists create never-before-seen isotope of magnesium
By Tom Metcalfe published
Scientists have just created the world's lightest form of magnesium — a never-before-seen isotope with just six neutrons in its atomic nuclei.
![Conceptual image of an atom – a bright nucleus with red atoms around it, and lines indicating the electrons' path](https://cdn.mos.cms.futurecdn.net/zmNSwMi3MFPJzkJSkVw6fL-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/zmNSwMi3MFPJzkJSkVw6fL-450-80.jpg 450w, https://cdn.mos.cms.futurecdn.net/zmNSwMi3MFPJzkJSkVw6fL-500-80.jpg 500w, https://cdn.mos.cms.futurecdn.net/zmNSwMi3MFPJzkJSkVw6fL-650-80.jpg 650w, https://cdn.mos.cms.futurecdn.net/zmNSwMi3MFPJzkJSkVw6fL-840-80.jpg 840w, https://cdn.mos.cms.futurecdn.net/zmNSwMi3MFPJzkJSkVw6fL-970-80.jpg 970w, https://cdn.mos.cms.futurecdn.net/zmNSwMi3MFPJzkJSkVw6fL-1024-80.jpg 1024w, https://cdn.mos.cms.futurecdn.net/zmNSwMi3MFPJzkJSkVw6fL-1200-80.jpg 1200w)
What is an atom? Facts about the building blocks of the universe
By Daisy Dobrijevic, Tim Sharp published
Reference Atoms are the building blocks of matter and were created after the Big Bang. They are the smallest unit of an element that still retains its properties.
![The classic Periodic Table organizes the chemical elements according to the number of protons that each has in its atomic nucleus.](https://cdn.mos.cms.futurecdn.net/rrmXUgcSBfKV8BbNmQdLDH-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/rrmXUgcSBfKV8BbNmQdLDH-450-80.jpg 450w, https://cdn.mos.cms.futurecdn.net/rrmXUgcSBfKV8BbNmQdLDH-500-80.jpg 500w, https://cdn.mos.cms.futurecdn.net/rrmXUgcSBfKV8BbNmQdLDH-650-80.jpg 650w, https://cdn.mos.cms.futurecdn.net/rrmXUgcSBfKV8BbNmQdLDH-840-80.jpg 840w, https://cdn.mos.cms.futurecdn.net/rrmXUgcSBfKV8BbNmQdLDH-970-80.jpg 970w, https://cdn.mos.cms.futurecdn.net/rrmXUgcSBfKV8BbNmQdLDH-1024-80.jpg 1024w, https://cdn.mos.cms.futurecdn.net/rrmXUgcSBfKV8BbNmQdLDH-1200-80.jpg 1200w)
How the Periodic Table of the Elements is arranged
By Charlie Wood, Ben Biggs published
Reference The elements in the periodic table are arranged according to the transition from metal to nonmetal elements.
![A chemist in a lab coat. Most people think chemistry is something done in lab, but you practice aspects of chemistry everyday.](https://cdn.mos.cms.futurecdn.net/fY3PHf8EeWchZ8cUzyKNfC-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/fY3PHf8EeWchZ8cUzyKNfC-450-80.jpg 450w, https://cdn.mos.cms.futurecdn.net/fY3PHf8EeWchZ8cUzyKNfC-500-80.jpg 500w, https://cdn.mos.cms.futurecdn.net/fY3PHf8EeWchZ8cUzyKNfC-650-80.jpg 650w, https://cdn.mos.cms.futurecdn.net/fY3PHf8EeWchZ8cUzyKNfC-840-80.jpg 840w, https://cdn.mos.cms.futurecdn.net/fY3PHf8EeWchZ8cUzyKNfC-970-80.jpg 970w, https://cdn.mos.cms.futurecdn.net/fY3PHf8EeWchZ8cUzyKNfC-1024-80.jpg 1024w, https://cdn.mos.cms.futurecdn.net/fY3PHf8EeWchZ8cUzyKNfC-1200-80.jpg 1200w)
What is chemistry?
By Alane Lim, Ben Biggs published
Reference Chemistry is the study of matter, its properties, how and why substances combine or separate to form other substances, and how substances interact with energy.
![Representatives from the Royal Swedish Academy of Sciences sit in front of a screen displaying the winners of the 2021 Nobel Prize in Chemistry..](https://cdn.mos.cms.futurecdn.net/ujUSNivnD6jPLosFASbQtZ-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/ujUSNivnD6jPLosFASbQtZ-450-80.jpg 450w, https://cdn.mos.cms.futurecdn.net/ujUSNivnD6jPLosFASbQtZ-500-80.jpg 500w, https://cdn.mos.cms.futurecdn.net/ujUSNivnD6jPLosFASbQtZ-650-80.jpg 650w, https://cdn.mos.cms.futurecdn.net/ujUSNivnD6jPLosFASbQtZ-840-80.jpg 840w, https://cdn.mos.cms.futurecdn.net/ujUSNivnD6jPLosFASbQtZ-970-80.jpg 970w, https://cdn.mos.cms.futurecdn.net/ujUSNivnD6jPLosFASbQtZ-1024-80.jpg 1024w, https://cdn.mos.cms.futurecdn.net/ujUSNivnD6jPLosFASbQtZ-1200-80.jpg 1200w)
Nobel Prize in chemistry given to duo whose method solves 'mirror-image problem' in chemistry
By Ben Turner published
Their solution allows scientists to select the 'chirality' of the molecule they are building
![Baking soda cleaning](https://cdn.mos.cms.futurecdn.net/s7KYBS57cwHveyQgpRwVgN-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/s7KYBS57cwHveyQgpRwVgN-450-80.jpg 450w, https://cdn.mos.cms.futurecdn.net/s7KYBS57cwHveyQgpRwVgN-500-80.jpg 500w, https://cdn.mos.cms.futurecdn.net/s7KYBS57cwHveyQgpRwVgN-650-80.jpg 650w, https://cdn.mos.cms.futurecdn.net/s7KYBS57cwHveyQgpRwVgN-840-80.jpg 840w, https://cdn.mos.cms.futurecdn.net/s7KYBS57cwHveyQgpRwVgN-970-80.jpg 970w, https://cdn.mos.cms.futurecdn.net/s7KYBS57cwHveyQgpRwVgN-1024-80.jpg 1024w, https://cdn.mos.cms.futurecdn.net/s7KYBS57cwHveyQgpRwVgN-1200-80.jpg 1200w)
Why are vinegar and baking soda so good for cleaning?
By Stacy Kish published
Why are common household items like baking soda and vinegar such good cleaning agents?
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