Name An Am BP MP Density
(g/cm3)
En
Actinium (Ac) 89 [227] 3743K 1323K 10 1.1
Thorium (Th) 90 232.0381 5061K 2115K 11.7 1.3
Protactinium (Pa) 91 231.03588 4300K 2113K 15.37 1.5
Uranium (U) 92 238.02891 (3) 4405.3K 1405K 19.1 1.38
Neptunium (Np) 93 [237] 4273K 910K 20.2 1.36
Plutonium (Pu) 94 [244] 3501K 912.5K 19.816 1.28
Americium (Am) 95 [243] 2880K 1449K 12 1.3
Curium (Cm) 96 [247] 3383K 1613K 13.51 1.28
Berkelium (Bk) 97 [247] unknown 1259K (alpha) 14.78 1.3
Californium (Cf) 98 [251] unknown 1173K unknown 1.3
Einsteinium (Es) 99 [252] unknown 1133K 8.84 1.3
Fermium (Fm) 100 [257] unknown 1800K unknown 1.3
Mendelevium (Md) 101 [258] unknown 1100K unknown 1.3
Nobelium (No) 102 [259] unknown unknown unknown 1.3