It was the
Russian scientist Dmitrij Mendelejev who in 1869 took the at the time known
elements and structured them.
He sorted them after mass and after periodic trends where the properties of the
elements were relatively regular. Through the system, a logic of the elements
suddenly appeared, and it became clear that the elements had similar properties
depending on how close they were to each other in the periodic table.
Öhrström is a professor of inorganic chemistry at Chalmers, and president of
the inorganic division of the International Union of Pure and Applied Chemistry,
IUPAC https://iupac.org/. The division is responsible for the periodic table.
– It is
difficult to imagine either biology, physics, chemistry or materials science
without the periodic table. A world where the elements had random properties
and the only thing you knew about them was the name of them, is difficult to
imagine today, he says.
periodic table also made it possible to predict elements that does not exist
naturally and in this way researchers have been able to create elements in the
laboratory. The most recent elements that Lars Öhrström and his colleagues at
IUPAC approved were nihonium, moscovium, tennessine and oganesson. These were
approved in 2016.
the Swedish Chemical Society have assigned different elements to Swedish
universities, with connection to the respective university. Chalmers has been
assigned silicon, as one of Chalmers' most prominent chemists of all time,
Arvid Hedvall, was a professor of silicate chemistry and has made a great
imprint on our knowledge of silicon. We pay attention to this, among other
things, through a poster exhibition that will be put up in the Chalmers library
during the spring.
Text: Mats Tiborn
Film: Johan Bodell