|
Thallium
|
Tl
|
81
|
Post-transition metal
|
the Greek thallos, 'green twig'
|
13
|
6
|
204.38
|
|
11.85
|
577.00
|
1746.00
|
0.13
|
1.62
|
0.85
|
|
Lead
|
Pb
|
82
|
Post-transition metal
|
English word (plumbum in Latin)
|
14
|
6
|
207.20
|
0.10
|
11.34
|
600.61
|
2022.00
|
0.13
|
1.87
|
14.00
|
|
Bismuth
|
Bi
|
83
|
Post-transition metal
|
Uncertain, possibly Arabic or German
|
15
|
6
|
208.98
|
0.00
|
9.81
|
544.70
|
1837.00
|
0.12
|
2.02
|
0.01
|
|
Polonium
|
Po
|
84
|
Post-transition metal
|
Named after the home country of Marie Curie (Polonia, Latin for Poland), who is also the discoverer of Radium
|
16
|
6
|
|
|
9.32
|
527.00
|
1235.00
|
|
2.00
|
0.00
|
|
Astatine
|
At
|
85
|
Metalloid
|
the Greek astatos, 'unstable'
|
17
|
6
|
|
|
7.00
|
575.00
|
610.00
|
|
2.20
|
0.00
|
|
Radon
|
Rn
|
86
|
Noble gas
|
From radium, as it was first detected as an emission from radium during radioactive decay
|
18
|
6
|
|
|
0.01
|
202.00
|
211.30
|
0.09
|
2.20
|
0.00
|
|
Francium
|
Fr
|
87
|
Alkali metal
|
Francia, the New Latin name for France
|
1
|
7
|
|
|
1.87
|
300.00
|
950.00
|
|
0.70
|
0.00
|
|
Radium
|
Ra
|
88
|
Alkaline earth metal
|
the Latin radius, 'ray'
|
2
|
7
|
|
|
5.50
|
973.00
|
2010.00
|
0.09
|
0.90
|
0.00
|
|
Actinium
|
Ac
|
89
|
Actinide
|
the Greek aktis, 'ray'
|
3
|
7
|
|
|
10.07
|
1323.00
|
3471.00
|
0.12
|
1.10
|
0.00
|
|
Thorium
|
Th
|
90
|
Actinide
|
Thor, the Scandinavian god of thunder
|
|
7
|
232.04
|
0.00
|
11.72
|
2115.00
|
5061.00
|
0.11
|
1.30
|
9.60
|