|
Dubnium
|
Db
|
105
|
Transition metal
|
Dubna, Russia
|
5
|
7
|
|
|
-29.30
|
|
|
|
|
0.00
|
|
Technetium
|
Tc
|
43
|
Transition metal
|
the Greek tekhnètos meaning 'artificial'
|
7
|
5
|
|
|
11.50
|
2430.00
|
4538.00
|
|
1.90
|
0.00
|
|
Actinium
|
Ac
|
89
|
Actinide
|
the Greek aktis, 'ray'
|
3
|
7
|
|
|
10.07
|
1323.00
|
3471.00
|
0.12
|
1.10
|
0.00
|
|
Californium
|
Cf
|
98
|
Actinide
|
California, where the element was first synthesized
|
|
7
|
|
|
15.10
|
1173.00
|
-1743.00
|
|
1.30
|
0.00
|
|
Lawrencium
|
Lr
|
103
|
Actinide
|
Ernest O. Lawrence, physicist
|
|
7
|
|
|
-15.60
|
-1900.00
|
|
|
1.30
|
0.00
|
|
Nobelium
|
No
|
102
|
Actinide
|
Alfred Nobel, chemist, engineer, inventor of dynamite
|
|
7
|
|
|
-9.90
|
-1100.00
|
|
|
1.30
|
0.00
|
|
Mendelevium
|
Md
|
101
|
Actinide
|
Dmitri Mendeleev, chemist and inventor
|
|
7
|
|
|
-10.30
|
-1100.00
|
|
|
1.30
|
0.00
|
|
Fermium
|
Fm
|
100
|
Actinide
|
Enrico Fermi, physicist
|
|
7
|
|
|
-9.70
|
-1125.00
|
|
|
1.30
|
0.00
|
|
Einsteinium
|
Es
|
99
|
Actinide
|
Albert Einstein, physicist
|
|
7
|
|
|
8.84
|
1133.00
|
-1269.00
|
|
1.30
|
0.00
|
|
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
|