Mathematical and Physical Journal
for High Schools
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Problem P. 3932. (November 2006)

P. 3932. Why can those radioactive isotopes (natural) exist in the Earth which have much shorter half-life than the age of the Earth?

(4 pont)

Deadline expired on December 11, 2006.


Statistics:

47 students sent a solution.
4 points:Almási 270 Gábor András, Bőle Pál, Földes Tamás, Hohmann Balázs, Kiszel Kristóf, Márkus Bence Gábor, Pálovics Róbert, Reiter Viktor, Takács 484 Marcell, Tüzes Dániel.
3 points:Almasi Susann Melinda, Krämer Zsolt, Lukács Milán, Nagy 897 Zsolt, Varga Bonbien.
2 points:16 students.
1 point:13 students.
0 point:3 students.

Problems in Physics of KöMaL, November 2006