symbol,name,atomic_number,atomic_weight
H,Hydrogen,1,1.0079
He,Helium,2,4.002602
Li,Lithium,3,6.941
Be,Beryllium,4,9.012182
B,Boron,5,10.811
C,Carbon,6,12.0107
N,Nitrogen,7,14.0067
O,Oxygen,8,15.9996
F,Fluorine,9,18.9984
Ne,Neon,10,20.1797
Na,Sodium,11,22.9897
Mg,Magnesium,12,24.305
Al,Aluminium,13,26.9815
Si,Silicon,14,28.0855
P,Phosphorus,15,30.9738
S,Sulfur,16,32.065
Cl,Chlorine,17,35.453
Ar,Argon,18,39.948
K,Potassium,19,39.0983
Ca,Calcium,20,40.078
Sc,Scandium,21,44.9559
Ti,Titanium,22,47.867
V,Vanadium,23,50.9415
Cr,Chromium,24,51.9961
Mn,Manganese,25,54.938
Fe,Iron,26,55.845
Co,Cobalt,27,58.9332
Ni,Nickel,28,58.6934
Cu,Copper,29,63.546
Zn,Zinc,30,65.39
Ga,Gallium,31,69.723
Ge,Germanium,32,72.64
As,Arsenic,33,74.9216
Se,Selenium,34,78.96
Br,Bromine,35,79.904
Kr,Krypton,36,83.3
Rb,Rubidium,37,85.4678
Sr,Strontium,38,87.62
Y,Yttrium,39,88.9059
Zr,Zirconium,40,91.224
Nb,Niobium,41,92.9064
Mo,Molybdenum,42,95.94
Tc,Technitium,43,98
Ru,Ruthenium,44,101.07
Rh,Rhodium,45,102.9055
Pd,Palladium,46,106.42
Ag,Silver,47,107.8682
Cd,Cadmiuim,48,112.411
In,Indium,49,114.818
Sn,Tin,50,118.71
Sb,Antimony,51,121.76
Te,Tellurium,52,127.6
I,Iodine,53,126.9045
Xe,Xenon,54,131.293
Cs,Cesium,55,132.9055
Ba,Barium,56,137.327
La,Lanthanum,57,138.9055
Ce,Cerium,58,140.116
Pr,Praseodymium,59,140.9077
Nd,Neodymium,60,144.24
Pm,Promethium,61,145
Sm,Samarium,62,150.36
Eu,Europium,63,151.964
Gd,Gadolium,64,157.25
Tb,Terbium,65,158.9253
Dy,Dysprosium,66,162.5
Ho,Holmium,67,164.9303
Er,Erbium,68,167.259
Tm,Thulium,69,168.9342
Yb,Ytterbium,70,173.04
Lu,Lutetium,71,174.967
Hf,Hafnium,72,178.49
Ta,Tantalum,73,180.9479
W,Tungsten,74,183.84
Re,Rhenium,75,186.207
Os,Osmium,76,190.23
Ir,Iridium,77,192.217
Pt,Platinum,78,195.078
Au,Gold,79,196.9665
Hg,Mercury,80,200.59
Tl,Thallium,81,204.3833
Pb,Lead,82,207.2
Bi,Bismuth,83,208.9804
Po,Polonium,84,209
At,Astatine,85,210
Rn,Radon,86,222
Fr,Francium,87,223
Ra,Radium,88,226
Ac,Actinium,89,227
Th,Thorium,90,232.0381
Pa,Protactinium,91,231.0359
U,Uranium,92,238.0289
Np,Neptunum,93,237
Pu,Plutonium,94,244
Am,Americium,95,243
Cm,Curium,96,247
Bk,Berkilium,97,247
Cf,Californium,98,251
Es,Einsteinium,99,252
Fm,Fermium,100,257
Md,Mendelevium,101,258
No,Nobelium,102,259
Lr,Lawrencium,103,262
Rf,Rutherfordium,104,261
Db,Dubnium,105,262
Sg,Seaborgium,106,266
Bh,Bohrium,107,264
Hs,Hassium,108,277
Mt,Meitnerium,109,268