Problem P. 4400. (December 2011)

P. 4400. William Ramsay a British chemist observed that the one of the optical spectral lines of the gas which was liberated from the mineral cleveite, containing uranium, is the same as the line in the spectrum of the Sun. Which gas did Ramsay find? How did this gas originate from the mineral?

(3 pont)

Deadline expired on January 10, 2012.

Sorry, the solution is available only in Hungarian. Google translation

Megoldás. A gáz hélium volt. A hélium atomok atommagjait az urán bomlása során kilépő alfa-részecskék.

Statistics:

91 students sent a solution.
3 points:	Antalicz Balázs, Bodnár Patrícia, Bodor Bálint, Bolgár Dániel, Büki Máté, Dálya Gergely, Demeter Dániel, Epinger Bálint, Gál Kristóf, Gujás István, Hajdu 343 Martin, Hoffmann Áron, Huszár Emese, Juhász Péter, Kacz Dániel, Kollarics Sándor, Kúsz Ágnes, Lévai 482 Nikolett, Mészáros Gabriella, Mezősi Máté, Morvay Bálint, Nagy Bence Kristóf, Öreg Zsombor, Papp Roland, Pataki Bálint Ármin, Pölöskei Péter Zsolt, Putti Krisztián, Szabó 928 Attila, Székely Eszter, Táczi István, Tószegi Krisztina, Tóth Dávid, Török Dávid, Volford András, Wiandt Péter.
2 points:	32 students.
1 point:	19 students.
0 point:	3 students.
Unfair, not evaluated:	2 solutionss.

Problems in Physics of KöMaL, December 2011