Ruthenium

1844

Ruthenium

The book of science

Tom Sharp


KazanKarl Ernst Claus elements

Ruthenium

Atomic number 44

Parker 51


My Parker 51 fountain pen had the ruthenium nib.

See also in The book of science:

Readings on wikipedia:

Other readings:

  • Ruthenium,” Elementymology & Elements Multidict, by Peter van der Krogt