|
Berkelium
|
Bk
|
97
|
Actinide
|
Berkeley, California, where the element was first synthesized, by analogy with terbium
|
|
7
|
|
|
14.79
|
1259.00
|
2900.00
|
|
1.30
|
0.00
|
|
Curium
|
Cm
|
96
|
Actinide
|
Pierre Curie, a physicist, and Marie Curie, a physicist and chemist, named after great scientists by analogy with gadolinium
|
|
7
|
|
|
13.51
|
1613.00
|
3383.00
|
|
1.28
|
0.00
|
|
Americium
|
Am
|
95
|
Actinide
|
The Americas, as the element was first synthesized on the continent, by analogy with europium
|
|
7
|
|
|
13.69
|
1449.00
|
2880.00
|
|
1.13
|
0.00
|
|
Plutonium
|
Pu
|
94
|
Actinide
|
Pluto, a dwarf planet in the Solar System (then considered the ninth planet)
|
|
7
|
|
|
19.84
|
912.50
|
3501.00
|
|
1.28
|
0.00
|
|
Neptunium
|
Np
|
93
|
Actinide
|
Neptune, the eighth planet in the Solar System
|
|
7
|
|
|
20.45
|
917.00
|
4273.00
|
|
1.36
|
0.00
|
|
Uranium
|
U
|
92
|
Actinide
|
Uranus, the seventh planet in the Solar System
|
|
7
|
238.03
|
0.00
|
18.95
|
1405.30
|
4404.00
|
0.12
|
1.38
|
2.70
|
|
Protactinium
|
Pa
|
91
|
Actinide
|
the Greek protos, 'first', and actinium, which is produced through the radioactive decay of protactinium
|
|
7
|
231.04
|
0.00
|
15.37
|
1841.00
|
4300.00
|
|
1.50
|
0.00
|
|
Lawrencium
|
Lr
|
103
|
Actinide
|
Ernest O. Lawrence, physicist
|
|
7
|
|
|
-15.60
|
-1900.00
|
|
|
1.30
|
0.00
|
|
Iron
|
Fe
|
26
|
Transition metal
|
English word (ferrum in Latin)
|
8
|
4
|
55.85
|
0.00
|
7.87
|
1811.00
|
3134.00
|
0.45
|
1.83
|
56300.00
|
|
Manganese
|
Mn
|
25
|
Transition metal
|
corrupted from magnesia negra, see Magnesium
|
7
|
4
|
54.94
|
0.00
|
7.44
|
1519.00
|
2334.00
|
0.48
|
1.55
|
950.00
|