|
Beryllium
|
Be
|
4
|
Alkaline earth metal
|
beryl, a mineral
|
2
|
2
|
9.01
|
0.00
|
1.85
|
1560.00
|
2742.00
|
1.83
|
1.57
|
2.80
|
|
Caesium
|
Cs
|
55
|
Alkali metal
|
the Latin caesius, 'sky blue'
|
1
|
6
|
132.91
|
0.00
|
1.87
|
301.59
|
944.00
|
0.24
|
0.79
|
3.00
|
|
Hafnium
|
Hf
|
72
|
Transition metal
|
Hafnia, the New Latin name for Copenhagen
|
4
|
6
|
178.49
|
0.02
|
13.31
|
2506.00
|
4876.00
|
0.14
|
1.30
|
3.00
|
|
Ytterbium
|
Yb
|
70
|
Lanthanide
|
Ytterby, Sweden
|
|
6
|
173.05
|
0.00
|
6.97
|
1097.00
|
1469.00
|
0.16
|
1.10
|
3.20
|
|
Erbium
|
Er
|
68
|
Lanthanide
|
Ytterby, Sweden
|
|
6
|
167.26
|
0.00
|
9.07
|
1802.00
|
3141.00
|
0.17
|
1.24
|
3.50
|
|
Argon
|
Ar
|
18
|
Noble gas
|
the Greek argos, 'idle'
|
18
|
3
|
39.95
|
0.00
|
0.00
|
83.80
|
87.30
|
0.52
|
|
3.50
|
|
Dysprosium
|
Dy
|
66
|
Lanthanide
|
the Greek dysprositos, 'hard to get'
|
|
6
|
162.50
|
0.00
|
8.55
|
1680.00
|
2840.00
|
0.17
|
1.22
|
5.20
|
|
Gadolinium
|
Gd
|
64
|
Lanthanide
|
Johan Gadolin, chemist, physicist and mineralogist
|
|
6
|
157.25
|
0.03
|
7.90
|
1585.00
|
3546.00
|
0.24
|
1.20
|
6.20
|
|
Samarium
|
Sm
|
62
|
Lanthanide
|
Samarskite, the name of the mineral from which it was first isolated
|
|
6
|
150.36
|
0.02
|
7.52
|
1345.00
|
2067.00
|
0.20
|
1.17
|
7.05
|
|
Praseodymium
|
Pr
|
59
|
Lanthanide
|
the Greek praseios didymos meaning 'green twin'
|
|
6
|
140.91
|
0.00
|
6.77
|
1208.00
|
3793.00
|
0.19
|
1.13
|
9.20
|