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The elements Moscovium, Tennessine, and Oganesson are officially added to the periodic table at a conference in Moscow, Russia.
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Moscovium
Chemical element with atomic number 115 (Mc)
Moscovium is a synthetic chemical element; it has symbol Mc and atomic number 115. It was first synthesized in 2003 by a joint team of Russian and American scientists at the Joint Institute for Nuclear Research (JINR) in Dubna, Russia. In December 2015, it was recognized as one…Source: Wikipedia (CC BY-SA)
Tennessine
Chemical element with atomic number 117 (Ts)
Tennessine is a synthetic element; it has symbol Ts and atomic number 117. It has the second-highest atomic number, the joint-highest atomic mass of all known elements, and is the penultimate element of the 7th period of the periodic table. It is named after the U.S. state of…Source: Wikipedia (CC BY-SA)
Oganesson
Chemical element with atomic number 118 (Og)
Oganesson is a synthetic chemical element; it has symbol Og and atomic number 118. It was first synthesized in 2002 at the Joint Institute for Nuclear Research (JINR) in Dubna, near Moscow, Russia, by a joint team of Russian and American scientists. In December 2015, it was…Source: Wikipedia (CC BY-SA)
Periodic table
Tabular arrangement of the chemical elements
The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows ("periods") and columns ("groups"). An icon of chemistry, the periodic table is widely used in physics and other sciences. It is a depiction of the…Source: Wikipedia (CC BY-SA)
Moscow
Capital and most populous city of Russia
Moscow is the capital and largest city of Russia, standing on the Moskva River in Central Russia. It has a population estimated at over 13 million residents within the city limits, over 19.1 million residents in the urban area, and over 21.5 million residents in its metropolitan…Source: Wikipedia (CC BY-SA)