Name
Sym
Atomic#
Ancient times
Antimony
Sb
51
Bismuth
Bi
83
Carbon
C
6
Copper
Cu
29
Gold
Au
79
Iron
Fe
26
Lead
Pb
82
Mercury
Hg
80
Silver
Ag
47
Sulfur
S
16
Tin
Sn
50
1250
Arsenic
Ar
33
1669
Phosphorus
P
15
1735
Platinum
Pt
78
1737
Cobalt
Co
27
1746
Zinc
Zn
30
1751
Nickel
Ni
28
1766
Hydrogen
H
1
1772
Nitrogen
N
7
1774
Chlorine
Cl
17
Manganese
Mn
25
Oxygen
O
8
1778
Molybdenum
Mo
42
1782
Tellurium
Te
52
1783
Tungsten
W
74
1789
Uranium
U
92
Zirconium
Zr
40
1790
Strontium
Sr
38
1791
Titanium
Ti
22
1794
Yttrium
Y
39
1797
Chromium
Cr
24
1798
Beryllium
Be
4
1801
Niobium
Nb
41
1802
Tantalum
Ta
73
1803
Cerium
Ce
58
Palladium
Pd
46
Rhodium
Rh
45
1804
Iodine
I
53
Iridium
Ir
77
Osmium
Os
76
1807
Potassium
K
19
Sodium
Na
11
1808
Barium
Ba
56
Calcium
Ca
20
Magnesium
Mg
12
1817
Cadmium
Cd
48
Lithium
Li
3
Selenium
Se
34
1823
Silicon
Si
14
1825
Aluminium
Al
13
1826
Bromine
Br
35
1828
Boron
B
5
Thorium
Th
90
1830
Vanadium
V
23
1839
Lanthanum
La
57
1843
Erbium
Er
68
Terbium
Tb
65
1844
Ruthenium
Ru
44
1860
Cesium
Cs
55
1861
Rubidium
Rb
37
Thallium
Tl
81
1863
Indium
In
49
1875
Gallium
Ga
31
1878
Holmium
Ho
67
Ytterbium
Yb
70
1879
Samarium
Sm
62
Scandium
Sc
21
Thulium
Tm
69
1880
Gadolinium
Gd
64
1885
Praseodymium
Pr
59
1886
Dysprosium
Dy
66
Fluorine
F
9
Germanium
Ge
32
1894
Argon
As
18
1895
Helium
He
2
1898
Krypton
Kr
36
Neon
Ne
10
Polonium
Po
84
Radium
Ra
88
Radon
Rn
86
Xenon
Xe
54
1899
Actinium
Ac
89
1901
Europium
Eu
63
1907
Lutetium
Lu
71
1917
Protactinium
Pa
91
1923
Hafnium
Hf
72
1925
Neodymium
Nd
60
Rhenium
Re
75
1937
Technetium
Tc
43
1939
Francium
Fr
87
1940
Astatine
At
85
Neptunium
Np
93
Plutonium
Pu
94
1944
Curium
Cm
96
1945
Americium
Am
95
Promethium
Pm
61
1949
Berkelium
Bk
97
1950
Californium
Cf
98
1952
Einsteinium
Es
99
1953
Fermium
Fm
100
1955
Mendelevium
Md
101
1957
Nobelium
No
102
1961
Lawrencium
Lr
103
1969
Rutherfordium
Rf
104
1970
Dubnium
Db
105
1974
Seaborgium
Sg
106
1976
Bohrium
Bh
107
1982
Meitnerium
Mt
109
1984
Hassium
Hs
108
1994
Darmstadtium
Ds
110
Roentgenium
Rg
111
1996
Ununbium
Uub
112