|
Selenium
|
Se
|
34
|
Reactive nonmetal
|
the Greek selene, 'moon'
|
16
|
4
|
78.97
|
0.01
|
4.81
|
453.00
|
958.00
|
0.32
|
2.55
|
0.05
|
|
Gold
|
Au
|
79
|
Transition metal
|
English word (aurum in Latin)
|
11
|
6
|
196.97
|
0.00
|
19.28
|
1337.33
|
3129.00
|
0.13
|
2.54
|
0.00
|
|
Tungsten
|
W
|
74
|
Transition metal
|
the Swedish tung sten, 'heavy stone' (W is wolfram, the old name of the tungsten mineral wolframite)
|
6
|
6
|
183.84
|
0.01
|
19.25
|
3695.00
|
5828.00
|
0.13
|
2.36
|
1.30
|
|
Platinum
|
Pt
|
78
|
Transition metal
|
the Spanish platina, meaning 'little silver'
|
10
|
6
|
195.08
|
0.01
|
21.46
|
2041.40
|
4098.00
|
0.13
|
2.28
|
0.01
|
|
Rhodium
|
Rh
|
45
|
Transition metal
|
the Greek rhodos, meaning 'rose coloured'
|
9
|
5
|
102.91
|
0.00
|
12.41
|
2237.00
|
3968.00
|
0.24
|
2.28
|
0.00
|
|
Palladium
|
Pd
|
46
|
Transition metal
|
the then recently discovered asteroid Pallas, considered a planet at the time
|
10
|
5
|
106.42
|
0.01
|
12.02
|
1828.05
|
3236.00
|
0.24
|
2.20
|
0.02
|
|
Iridium
|
Ir
|
77
|
Transition metal
|
Iris, the Greek goddess of the rainbow
|
9
|
6
|
192.22
|
0.00
|
22.56
|
2719.00
|
4701.00
|
0.13
|
2.20
|
0.00
|
|
Astatine
|
At
|
85
|
Metalloid
|
the Greek astatos, 'unstable'
|
17
|
6
|
|
|
7.00
|
575.00
|
610.00
|
|
2.20
|
0.00
|
|
Hydrogen
|
H
|
1
|
Reactive nonmetal
|
composed of the Greek elements hydro- and -gen meaning 'water-forming'
|
1
|
1
|
1.01
|
0.00
|
0.00
|
14.01
|
20.28
|
14.30
|
2.20
|
1400.00
|
|
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
|