Atomic number: 1
Atomic weight: 1.008
Category: Nonmetal
Atomic number: 2
Atomic weight: 4.002
Category: Noble Gas
Atomic number: 3
Atomic weight: 6.941
Category: Alkali Metal
Atomic number: 4
Atomic weight: 9.012
Category: Alkaline Earth Metal
Atomic number: 5
Atomic weight: 10.811
Category: Metalloid
Atomic number: 6
Atomic weight: 12.011
Category: Nonmetal
Atomic number: 7
Atomic weight: 14.007
Category: Nonmetal
Atomic number: 8
Atomic weight: 15.999
Category: Nonmetal
Atomic number: 9
Atomic weight: 18.998
Category: Hallogen
Atomic number: 10
Atomic weight: 20.1797
Category: Noble Gas
Atomic number: 11
Atomic weight: 22.989
Category: Alkali Metal
Atomic number: 12
Atomic weight: 24.305
Category: Alkaline Earth Metal
Atomic number: 13
Atomic weight: 26.981
Category: Post-Transitional Metal
Atomic number: 14
Atomic weight: 28.085
Category: Metalloid
Atomic number: 15
Atomic weight: 30.973
Category: Nonmetal
Atomic number: 16
Atomic weight: 32.061
Category: Nonmetal
Atomic number: 17
Atomic weight: 34.451
Category: Hallogen
Atomic number: 18
Atomic weight: 39.948
Category: Noble Gas
Atomic number: 19
Atomic weight: 39.098
Category: Alkali Metal
Atomic number: 20
Atomic weight: 40.078
Category: Alkaline Earth Metal
Atomic number: 21
Atomic weight: 47.867
Category: Transition Metal
AVAILABLE
Atomic number: 22
Atomic weight: 40.078
Category: Transition Metal
Atomic number: 23
Atomic weight: 50.941
Category: Transition Metal
AVAILABLE
Atomic number: 24
Atomic weight: 51.996
Category: Transition Metal
Atomic number: 25
Atomic weight: 54.938
Category: Transition Metal
Atomic number: 26
Atomic weight: 55.845
Category: Transition Metal
Atomic number: 27
Atomic weight: 58.933
Category: Transition Metal
AVAILABLE
Atomic number: 28
Atomic weight: 58.693
Category: Transition Metal
AVAILABLE
Atomic number: 29
Atomic weight: 63.546
Category: Transition Metal
Atomic number: 30
Atomic weight: 65.382
Category: Transition Metal
Atomic number: 31
Atomic weight: 69.723
Category: Post-Transitional Metal
AVAILABLE
Atomic number: 32
Atomic weight: 72.631
Category: Metalloid
Atomic number: 33
Atomic weight: 74.921
Category: Metalloid
Atomic number: 34
Atomic weight: 78.963
Category: Nonmetal
AVAILABLE
Atomic number: 35
Atomic weight: 79.904
Category: Hallogen
Atomic number: 36
Atomic weight: 83.798
Category: Noble Gas
Atomic number: 37
Atomic weight: 85.467
Category: Alkali Metal
Atomic number: 38
Atomic weight: 87.621
Category: Alkaline Earth Metal
AVAILABLE
Atomic number: 39
Atomic weight: 87.905
Category: Transition Metal
AVAILABLE
Atomic number: 40
Atomic weight: 91.224
Category: Transition Metal
Atomic number: 41
Atomic weight: 92.906
Category: Transition Metal
Atomic number: 42
Atomic weight: 95.962
Category: Transition Metal
AVAILABLE
Atomic number: 43
Atomic weight: 98.000
Category: Transition Metal
Atomic number: 44
Atomic weight: 101.072
Category: Transition Metal
AVAILABLE
Atomic number: 45
Atomic weight: 102.905
Category: Transition Metal
AVAILABLE
Atomic number: 45
Atomic weight: 106.421
Category: Transition Metal
AVAILABLE
Atomic number: 47
Atomic weight: 107.868
Category: Transition Metal
Atomic number: 48
Atomic weight: 112.411
Category: Transition Metal
Atomic number: 49
Atomic weight: 114.818
Category: Post-Transition Metal
Atomic number: 50
Atomic weight: 118.710
Category: Post-Transition Metal
Atomic number: 51
Atomic weight: 121.760
Category: Metalloid
AVAILABLE
Atomic number: 52
Atomic weight: 127.603
Category: Metalloid
Atomic number: 53
Atomic weight: 126.904
Category: Halogen
Atomic number: 54
Atomic weight: 131.293
Category: Noble Gas
AVAILABLE
Atomic number: 55
Atomic weight: 132.905
Category: Alkali Metal
AVAILABLE
Atomic number: 56
Atomic weight: 137.327
Category: Alkaline Earth Metal
Atomic number: 57
Atomic weight: 138.905
Category: Lanthanide
AVAILABLE
Atomic number: 58
Atomic weight: 140.116
Category: Lanthanide
Atomic number: 59
Atomic weight: 140.907
Category: Lanthanide
AVAILABLE
Atomic number: 60
Atomic weight: 144.242
Category: Lanthanide
AVAILABLE
Atomic number: 61
Atomic weight: 144.242
Category: Lanthanide
AVAILABLE
Atomic number: 62
Atomic weight: 150.362
Category: Lanthanide
AVAILABLE
Atomic number: 63
Atomic weight: 151.964
Category: Lanthanide
Atomic number: 64
Atomic weight: 157.253
Category: Lanthanide
AVAILABLE
Atomic number: 65
Atomic weight: 158.925
Category: Lanthanide
AVAILABLE
Atomic number: 66
Atomic weight: 162.500
Category: Lanthanide
AVAILABLE
Atomic number: 67
Atomic weight: 164.930
Category: Lanthanide
Atomic number: 68
Atomic weight: 167.259
Category: Lanthanide
AVAILABLE
Atomic number: 69
Atomic weight: 168.934
Category: Lanthanide
Atomic number: 70
Atomic weight: 173.054
Category: Lanthanide
AVAILABLE
Atomic number: 71
Atomic weight: 174.966
Category: Lanthanide
AVAILABLE
Atomic number: 72
Atomic weight: 178.492
Category: Transition Metal
AVAILABLE
Atomic number: 73
Atomic weight: 180.947
Category: Transition Metal
AVAILABLE
Atomic number: 74
Atomic weight: 183.841
Category: Transition Metal
Atomic number: 75
Atomic weight: 186.207
Category: Transition Metal
AVAILABLE
Atomic number: 76
Atomic weight: 190.233
Category: Transition Metal
Atomic number: 77
Atomic weight: 192.217
Category: Transition Metal
AVAILABLE
Atomic number: 78
Atomic weight: 195.084
Category: Transition Metal
AVAILABLE
Atomic number: 79
Atomic weight: 196.966
Category: Transition Metal
Atomic number: 80
Atomic weight: 200.592
Category: Transition Metal
Atomic number: 81
Atomic weight: 204.381
Category: Post-Transition Metal
AVAILABLE
Atomic number: 82
Atomic weight: 207.210
Category: Post-Transition Metal
Atomic number: 83
Atomic weight: 208.980
Category: Post-Transition Metal
Atomic number: 84
Atomic weight: 209.000
Category: Post-Transition Metal
Atomic number: 85
Atomic weight: 210.000
Category: Halogen
Atomic number: 86
Atomic weight: 222.000
Category: Noble Gas
Atomic number: 87
Atomic weight: 223.000
Category: Alkali Metal
Atomic number: 88
Atomic weight: 226.000
Category: Alkaline Earth Metal
Atomic number: 89
Atomic weight: 227.000
Category: Actinide
Atomic number: 90
Atomic weight: 232.038
Category: Actinide
Atomic number: 91
Atomic weight: 231.035
Category: Actinide
Atomic number: 92
Atomic weight: 238.028
Category: Actinide
Atomic number: 93
Atomic weight: 237.000
Category: Actinide
Atomic number: 94
Atomic weight: 244.000
Category: Actinide
Atomic number: 95
Atomic weight: 243.000
Category: Actinide
Atomic number: 96
Atomic weight: 247.000
Category: Actinide
Atomic number: 97
Atomic weight: 247.000
Category: Actinide
Atomic number: 98
Atomic weight: 251.000
Category: Actinide
Atomic number: 99
Atomic weight: 252.000
Category: Actinide
Atomic number: 100
Atomic weight: 257.000
Category: Actinide
Atomic number: 101
Atomic weight: 258.000
Category: Actinide
AVAILABLE
Atomic number: 102
Atomic weight: 259.000
Category: Actinide
Atomic number: 103
Atomic weight: 262.000
Category: Actinide
Atomic number: 104
Atomic weight: 267.000
Category: Transition Metal
AVAILABLE
Atomic number: 105
Atomic weight: 268.000
Category: Transition Metal
AVAILABLE
Atomic number: 106
Atomic weight: 269.000
Category: Transition Metal
AVAILABLE
Atomic number: 107
Atomic weight: 270.000
Category: Transition Metal
AVAILABLE
Atomic number: 108
Atomic weight: 269.000
Category: Transition Metal
Atomic number: 109
Atomic weight: 278.000
Category: Unknown
AVAILABLE
Atomic number: 110
Atomic weight: 281.000
Category: Unknown
Atomic number: 111
Atomic weight: 281.000
Category: Unknown
AVAILABLE
Atomic number: 112
Atomic weight: 285.000
Category: Transition Metal
AVAILABLE
Atomic number: 113
Atomic weight: 286.000
Category: Unknown
Atomic number: 114
Atomic weight: 289.000
Category: Unknown
AVAILABLE
Atomic number: 115
Atomic weight: 288.000
Category: Unknown
AVAILABLE
Atomic number: 116
Atomic weight: 293.000
Category: Unknown
AVAILABLE
Atomic number: 117
Atomic weight: 294.000
Category: Unknown
Atomic number: 118
Atomic weight: 294.000
Category: Unknown