2
He
1868
N/A
-268 C
4.00
Noble gas
Helium
x
2
He
Helium
Series: Noble gas
Mass:
4.002602(2) g·mol−1
Discovered: 1868
Melting Point: N/A
Boiling Point: -268.93 C (04 K)
|
|||||||||||||||||
9
F
1886
-219 C
-188 C
19.00
Halogen
Fluorine
x
9
F
Fluorine
Series: Halogen
Mass:
18.998403(5) g·mol−1
Discovered: 1886
Melting Point: -219.55 C (53 K)
Boiling Point: -188.12 C (85 K)
|
10
Ne
1898
-248 C
-246 C
20.18
Noble gas
Neon
x
10
Ne
Neon
Series: Noble gas
Mass:
20.1797(6) g·mol−1
Discovered: 1898
Melting Point: -248.45 C (24 K)
Boiling Point: -246.08 C (27 K)
|
||||||||||||||||
17
Cl
1774
-101 C
-34 C
35.45
Halogen
Chlorine
x
17
Cl
Chlorine
Series: Halogen
Mass:
35.453(2) g·mol−1
Discovered: 1774
Melting Point: -101.15 C (172 K)
Boiling Point: -34.04 C (239 K)
|
18
Ar
1894
-189 C
-185 C
39.95
Noble gas
Argon
x
18
Ar
Argon
Series: Noble gas
Mass:
39.948(1) g·mol−1
Discovered: 1894
Melting Point: -189.15 C (84 K)
Boiling Point: -185.85 C (87 K)
|
||||||||||||||||
35
Br
1826
-7 C
58 C
79.90
Halogen
Bromine
x
35
Br
Bromine
Series: Halogen
Mass:
79.904(1) g·mol−1
Discovered: 1826
Melting Point: -7.15 C (266 K)
Boiling Point: 58.85 C (332 K)
|
36
Kr
1898
-157 C
-153 C
83.80
Noble gas
Krypton
x
36
Kr
Krypton
Series: Noble gas
Mass:
83.798(2) g·mol−1
Discovered: 1898
Melting Point: -157.15 C (116 K)
Boiling Point: -153.22 C (119 K)
|
||||||||||||||||
53
I
1811
113 C
184 C
126.90
Halogen
Iodine
x
53
I
Iodine
Series: Halogen
Mass:
126.90447(3) g·mol−1
Discovered: 1811
Melting Point: 113.55 C (386 K)
Boiling Point: 184.25 C (457 K)
|
54
Xe
1898
-112 C
-108 C
131.29
Noble gas
Xenon
x
54
Xe
Xenon
Series: Noble gas
Mass:
131.293(6) g·mol−1
Discovered: 1898
Melting Point: -112.15 C (161 K)
Boiling Point: -108.12 C (165 K)
|
||||||||||||||||
85
At
1940
301 C
336 C
209.99
Halogen
Astatine
x
85
At
Astatine
Series: Halogen
Mass:
209.9871 g·mol−1 (mass of most stable isotope)
Discovered: 1940
Melting Point: 301.85 C (575 K)
Boiling Point: 336.85 C (610 K)
|
86
Rn
1898
-71 C
-61 C
222.02
Noble gas
Radon
x
86
Rn
Radon
Series: Noble gas
Mass:
222.0176 g·mol−1 (mass of most stable isotope)
Discovered: 1898
Melting Point: -71.05 C (202 K)
Boiling Point: -61.85 C (211 K)
|
||||||||||||||||
117
Uus
?
?
?
?
Halogen
Ununseptium
x
117
Uus
Ununseptium
Series: Halogen
Mass:
Unknown
Discovered: Undiscovered
Melting Point: Unknown
Boiling Point: Unknown
|
118
Uuo
2006
?
-23 C
294.00
Noble gas
Ununoctium
x
118
Uuo
Ununoctium
Series: Noble gas
Mass:
294.0 g·mol−1 (mass of most stable isotope)
Discovered: 2006
Melting Point: Unknown
Boiling Point: -23.15 C (250 K)
|
||||||||||||||||
57
La
1839
916 C
3463 C
138.91
Lanthanide
Lanthanum
x
57
La
Lanthanum
Series: Lanthanide
Mass:
138.90547(7) g·mol−1
Discovered: 1839
Melting Point: 916.85 C (1190 K)
Boiling Point: 3463.85 C (3737 K)
|
58
Ce
1803
797 C
3442 C
140.12
Lanthanide
Cerium
x
58
Ce
Cerium
Series: Lanthanide
Mass:
140.116(1) g·mol−1
Discovered: 1803
Melting Point: 797.85 C (1071 K)
Boiling Point: 3442.85 C (3716 K)
|
59
Pr
1885
930 C
3519 C
140.91
Lanthanide
Praseodymium
x
59
Pr
Praseodymium
Series: Lanthanide
Mass:
140.90765(2) g·mol−1
Discovered: 1885
Melting Point: 930.85 C (1204 K)
Boiling Point: 3519.85 C (3793 K)
|
60
Nd
1885
1015 C
3073 C
144.24
Lanthanide
Neodymium
x
60
Nd
Neodymium
Series: Lanthanide
Mass:
144.242(3) g·mol−1
Discovered: 1885
Melting Point: 1015.85 C (1289 K)
Boiling Point: 3073.85 C (3347 K)
|
61
Pm
1945
930 C
2999 C
146.92
Lanthanide
Promethium
x
61
Pm
Promethium
Series: Lanthanide
Mass:
146.9151 g·mol−1 (mass of most stable isotope)
Discovered: 1945
Melting Point: 930.85 C (1204 K)
Boiling Point: 2999.85 C (3273 K)
|
62
Sm
1879
1071 C
1793 C
150.36
Lanthanide
Samarium
x
62
Sm
Samarium
Series: Lanthanide
Mass:
150.36(2) g·mol−1
Discovered: 1879
Melting Point: 1071.85 C (1345 K)
Boiling Point: 1793.85 C (2067 K)
|
63
Eu
1901
821 C
1528 C
151.96
Lanthanide
Europium
x
63
Eu
Europium
Series: Lanthanide
Mass:
151.964(1) g·mol−1
Discovered: 1901
Melting Point: 821.85 C (1095 K)
Boiling Point: 1528.85 C (1802 K)
|
64
Gd
1880
1311 C
3272 C
157.25
Lanthanide
Gadolinium
x
64
Gd
Gadolinium
Series: Lanthanide
Mass:
157.25(3) g·mol−1
Discovered: 1880
Melting Point: 1311.85 C (1585 K)
Boiling Point: 3272.85 C (3546 K)
|
65
Tb
1843
1356 C
3229 C
158.93
Lanthanide
Terbium
x
65
Tb
Terbium
Series: Lanthanide
Mass:
158.92535(2) g·mol−1
Discovered: 1843
Melting Point: 1356.85 C (1630 K)
Boiling Point: 3229.85 C (3503 K)
|
66
Dy
1886
1406 C
2566 C
162.50
Lanthanide
Dysprosium
x
66
Dy
Dysprosium
Series: Lanthanide
Mass:
162.5(1) g·mol−1
Discovered: 1886
Melting Point: 1406.85 C (1680 K)
Boiling Point: 2566.85 C (2840 K)
|
67
Ho
1879
1466 C
2719 C
164.93
Lanthanide
Holmium
x
67
Ho
Holmium
Series: Lanthanide
Mass:
164.93032(2) g·mol−1
Discovered: 1879
Melting Point: 1466.85 C (1740 K)
Boiling Point: 2719.85 C (2993 K)
|
68
Er
1843
1521 C
3229 C
167.26
Lanthanide
Erbium
x
68
Er
Erbium
Series: Lanthanide
Mass:
167.259(3) g·mol−1
Discovered: 1843
Melting Point: 1521.85 C (1795 K)
Boiling Point: 3229.85 C (3503 K)
|
69
Tm
1879
1544 C
1949 C
168.93
Lanthanide
Thulium
x
69
Tm
Thulium
Series: Lanthanide
Mass:
168.93421(2) g·mol−1
Discovered: 1879
Melting Point: 1544.85 C (1818 K)
Boiling Point: 1949.85 C (2223 K)
|
70
Yb
1878
823 C
1195 C
173.04
Lanthanide
Ytterbium
x
70
Yb
Ytterbium
Series: Lanthanide
Mass:
173.04(3) g·mol−1
Discovered: 1878
Melting Point: 823.85 C (1097 K)
Boiling Point: 1195.85 C (1469 K)
|
71
Lu
1907
1662 C
3401 C
174.97
Lanthanide
Lutetium
x
71
Lu
Lutetium
Series: Lanthanide
Mass:
174.967(1) g·mol−1
Discovered: 1907
Melting Point: 1662.85 C (1936 K)
Boiling Point: 3401.85 C (3675 K)
|
|||
89
Ac
1899
1046 C
3197 C
227.03
Actinide
Actinium
x
89
Ac
Actinium
Series: Actinide
Mass:
227.0278 g·mol−1 (mass of most stable isotope)
Discovered: 1899
Melting Point: 1046.85 C (1320 K)
Boiling Point: 3197.85 C (3471 K)
|
90
Th
1828
1754 C
4787 C
232.04
Actinide
Thorium
x
90
Th
Thorium
Series: Actinide
Mass:
232.03806(2) g·mol−1
Discovered: 1828
Melting Point: 1754.85 C (2028 K)
Boiling Point: 4787.85 C (5061 K)
|
91
Pa
1917
1596 C
4026 C
231.04
Actinide
Protactinium
x
91
Pa
Protactinium
Series: Actinide
Mass:
231.03588(2) g·mol−1
Discovered: 1917
Melting Point: 1596.85 C (1870 K)
Boiling Point: 4026.85 C (4300 K)
|
92
U
1789
1131 C
4130 C
238.03
Actinide
Uranium
x
92
U
Uranium
Series: Actinide
Mass:
238.02891(3) g·mol−1
Discovered: 1789
Melting Point: 1131.85 C (1405 K)
Boiling Point: 4130.85 C (4404 K)
|
93
Np
1940
639 C
3999 C
237.05
Actinide
Neptunium
x
93
Np
Neptunium
Series: Actinide
Mass:
237.0482 g·mol−1 (mass of most stable isotope)
Discovered: 1940
Melting Point: 639.85 C (913 K)
Boiling Point: 3999.85 C (4273 K)
|
94
Pu
1941
639 C
3227 C
244.06
Actinide
Plutonium
x
94
Pu
Plutonium
Series: Actinide
Mass:
244.0642 g·mol−1 (mass of most stable isotope)
Discovered: 1941
Melting Point: 639.85 C (913 K)
Boiling Point: 3227.85 C (3501 K)
|
95
Am
1944
993 C
2606 C
243.06
Actinide
Americium
x
95
Am
Americium
Series: Actinide
Mass:
243.0614 g·mol−1 (mass of most stable isotope)
Discovered: 1944
Melting Point: 993.85 C (1267 K)
Boiling Point: 2606.85 C (2880 K)
|
96
Cm
1944
1066 C
3109 C
247.07
Actinide
Curium
x
96
Cm
Curium
Series: Actinide
Mass:
247.0703 g·mol−1 (mass of most stable isotope)
Discovered: 1944
Melting Point: 1066.85 C (1340 K)
Boiling Point: 3109.85 C (3383 K)
|
97
Bk
1949
985 C
709 C
247.07
Actinide
Berkelium
x
97
Bk
Berkelium
Series: Actinide
Mass:
247.0703 g·mol−1 (mass of most stable isotope)
Discovered: 1949
Melting Point: 985.85 C (1259 K)
Boiling Point: 709.85 C (983 K)
|
98
Cf
1950
1651 C
899 C
251.08
Actinide
Californium
x
98
Cf
Californium
Series: Actinide
Mass:
251.0796 g·mol−1 (mass of most stable isotope)
Discovered: 1950
Melting Point: 1651.85 C (1925 K)
Boiling Point: 899.85 C (1173 K)
|
99
Es
1952
856 C
?
252.08
Actinide
Einsteinium
x
99
Es
Einsteinium
Series: Actinide
Mass:
252.0829 g·mol−1 (mass of most stable isotope)
Discovered: 1952
Melting Point: 856.85 C (1130 K)
Boiling Point: Unknown
|
100
Fm
1953
2780 C
?
257.10
Actinide
Fermium
x
100
Fm
Fermium
Series: Actinide
Mass:
257.0951 g·mol−1 (mass of most stable isotope)
Discovered: 1953
Melting Point: 2780.85 C (3054 K)
Boiling Point: Unknown
|
101
Md
1955
1520 C
?
258.10
Actinide
Mendelevium
x
101
Md
Mendelevium
Series: Actinide
Mass:
258.0986 g·mol−1 (mass of most stable isotope)
Discovered: 1955
Melting Point: 1520.85 C (1794 K)
Boiling Point: Unknown
|
102
No
1958
1520 C
?
259.10
Actinide
Nobelium
x
102
No
Nobelium
Series: Actinide
Mass:
259.1009 g·mol−1 (mass of most stable isotope)
Discovered: 1958
Melting Point: 1520.85 C (1794 K)
Boiling Point: Unknown
|
103
Lr
1961
2960 C
?
260.11
Actinide
Lawrencium
x
103
Lr
Lawrencium
Series: Actinide
Mass:
260.1053 g·mol−1 (mass of most stable isotope)
Discovered: 1961
Melting Point: 2960.85 C (3234 K)
Boiling Point: Unknown
|
Show:
Copyright 2008 Mark Ivey. Based on data retrieved from Wikipedia.
Sat Sep 12 17:41:34 2015