Swiss chemists M. Delafontaine and J. L. Soret first observed the absorption spectrum of an unknown element in 1878.
By G.P. Thomas
17 Dec 2012
Dubnium was first discovered in 1967 by the scientist at the Joint Institute for Nuclear Research in Dubna while bombarding americium atoms with neon ions. In the same year, a team from the University of California bombarded californium atoms with nitrogen ions and obtained dubnium-260.
By G.P. Thomas
17 Dec 2012
Darmstadtium was first synthesized by Peter Armbruster, Gottfried Münzenber in 1994 at the Heavy Ion Research Laboratory in Darmstadt. The team produced four atoms of darmstadtium while bombarding lead atoms with nickel atoms in a heavy ion accelerator.
By G.P. Thomas
17 Dec 2012
Californium was discovered in 1950 by a team consisting of Glenn Seaborg, Albert Ghiorso, Kenneth Street and Stanley G. Thompson at the University of California
By G.P. Thomas
17 Dec 2012
Two German scientists Armbruster and Münzenberg unambiguously identified bohrium in 1981 at the Gesellschaft für Schwerionenforschung while bombarding 209Bi with a beam of 54Cr ions using the universal linear accelerator.
By G.P. Thomas
17 Dec 2012
Ununpentium was discovered in 2003 by a group of scientists working at the Joint Institute for Nuclear Research in Dubna, Russia, and Lawrence Livermore National Laboratory (LLNL), California. In 2015, the International Union of Pure and Applied Chemistry (IUPAC) recognized the discovery of the element, which was renamed moscovium, referring to Moscow Oblast in Russia.
By G.P. Thomas
17 Dec 2012
Polyester is a plastic that was invented in the UK back in the 1940s, and is considered as one of the greatest man-made inventions. It is a long- chain synthetic polymer consisting at least 85% by weight ester and terephthalic acid.
Lawrencium was discovered by four American scientists, Robert M. Latimer, Almon E. Larsh, Torbjørn Sikkeland and Albert Ghiorso in 1961 at the Lawrence Radiation Laboratory in California.
By G.P. Thomas
17 Dec 2012
With an aim to discover the missing noble gases other than argon and helium in the periodic table Morris M. Travers, an English chemist and Sir William Ramsay, a Scottish chemist studied liquefied air in 1898.
By G.P. Thomas
17 Dec 2012
Aluminum is a silvery white metal and is insoluble in water under normal circumstances. After oxygen and silicon, aluminum is the third most abundant metal and in the earth’s crust it is the most abundant.