20 kroner DENMARK (2013) Scientists - Niels Bohr

in the coin centre head of Queen Margrethe II of Denmark facing right; along the top edge: MARGRETHE II DANMARKS DRONNING (Margrethe II Queen of Denmark); along the bottom edge year of issue: 2013

in the coin centre a disk symbolising hydrogen nucleus; around it three schematic electron orbitals; on one of them a disk symbolising the electron; below a date: 1913; along the top edge: NIELS BOHR • ATOMTEORI (atomic theory); along the bottom edge face value: 20 KRONER

seven plain and seven reeded sections

7 X 2013

still circulating

Lis Nogel

Den Kongelige Mønt (The Royal Mint), Copenhagen (mint mark before DANMARKS on the obverse)

2013

268 000

Commemorative coin with face value of 20 kroner from 2013 commemorates the centenary of the publication by the Niels Bohr his theory of the atom. Niels Bohr (1885-1962) was a Danish physicist, Nobel laureate in physics in 1922 for his research on the structure of the atom. In his honor, the element with atomic digit 107 was named bohr.

The Danish series of thematic coins "Scientists" was launched to commemorate the centenary of the publication of the atomic model by Niels Bohr. Danes decided to show that Bohr was not the only Danish, who had part in the history of scientific progress. The thematic series includes:

	20 kroner - Scientists - Niels Bohr (2013)
	20 kroner - Scientists - Hans Christian Ørsted (2013)
	20 kroner - Scientists - Ole Rømer (2013)
	20 kroner - Scientists - Tycho Brahe (2013)