Caesium
From Tardis Wiki, the free Doctor Who reference
According to the Twelfth Doctor, the atomic number of caesium was 55. (TV: Flatline)
According to the Twelfth Doctor, the atomic number of caesium was 55. (TV: Flatline)
This page was last edited on 10 October 2015, at 10:50 (UTC).Last edited: 10:50, 10 October 2015 (UTC)