|
Rhenium
|
Re
|
75
|
Transition metal
|
Rhenus, the Latin name for the river Rhine
|
7
|
6
|
186.21
|
0.00
|
21.02
|
3459.00
|
5869.00
|
0.14
|
1.90
|
0.00
|
|
Promethium
|
Pm
|
61
|
Lanthanide
|
Prometheus of Greek mythology who stole fire from the Gods and gave it to humans
|
|
6
|
|
|
7.26
|
1315.00
|
3273.00
|
|
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
|
|
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
|
|
Zirconium
|
Zr
|
40
|
Transition metal
|
Persian Zargun, 'gold-colored'; German Zirkoon, 'jargoon'
|
4
|
5
|
91.22
|
0.00
|
6.51
|
2128.00
|
4682.00
|
0.28
|
1.33
|
165.00
|
|
Niobium
|
Nb
|
41
|
Transition metal
|
Niobe, daughter of king Tantalus from Greek mythology
|
5
|
5
|
92.91
|
0.00
|
8.57
|
2750.00
|
5017.00
|
0.27
|
1.60
|
20.00
|
|
Bohrium
|
Bh
|
107
|
Transition metal
|
Niels Bohr, physicist
|
7
|
7
|
|
|
-37.10
|
|
|
|
|
0.00
|
|
Copernicium
|
Cn
|
112
|
Post-transition metal
|
Nicolaus Copernicus, astronomer
|
12
|
7
|
|
|
-23.70
|
|
357.00
|
|
|
0.00
|
|
Potassium
|
K
|
19
|
Alkali metal
|
New Latin potassa, 'potash' (kalium in Latin)
|
1
|
4
|
39.10
|
0.00
|
0.86
|
336.53
|
1032.00
|
0.76
|
0.82
|
20900.00
|
|
Neptunium
|
Np
|
93
|
Actinide
|
Neptune, the eighth planet in the Solar System
|
|
7
|
|
|
20.45
|
917.00
|
4273.00
|
|
1.36
|
0.00
|