Description:
A monochrome square with white text on a black background. It displays information about Rutherfordium, including its symbol 'Rf', atomic mass '(267)' and '104', and the text 'Atomic Mass', 'Rutherfordium', '[Rn] 7s² 5f14 6d2', and 'Transition Metal'.
Tags:
267, 5f14, 6d2, 7s2, atomic mass