constants atomicweight

/* 2001 Atomic Weights
*/

Ac=227;
Al=26.981538;
Am=243;
Sb=121.760;
Ar=39.948;
As=74.92160;
At=210;
Ba=137.327;
Bk=247;
Be=9.012182;
Bi=208.98038;
Bh=264;
B=10.811;
Br=79.904;
Cd=112.411;
Cs=132.90545;
Ca=40.078;
Cf=251;
C=12.0107;
Ce=140.116;
Cl=35.453;
Cr=51.9961;
Co=58.933200;
Cu=63.546;
Cm=247;
Db=262;
Dy=162.500;
Es=252;
Er=167.259;
Eu=151.964;
Fm=257;
F=18.9984032;
Fr=223;
Gd=157.25;
Ga=69.723;
Ge=72.64;
Au=196.96655;
Hf=178.49;
Hs=277;
He=4.002602;
Ho=164.93032;
H=1.00794;
In=114.818;
I=126.90447;
Ir=192.217;
Fe=55.845;
Kr=83.798;
La=138.9055;
Lr=262;
Pb=207.2;
Li=6.941;
Lu=174.967;
Mg=24.3050;
Mn=54.938049;
Mt=268;
Md=258;
Hg=200.59;
Mo=95.94;
Nd=144.24;
Ne=20.1797;
Np=237;
Ni=58.6934;
Nb=92.90638;
N=14.0067;
No=259;
Os=190.23;
O=15.9994;
Pd=106.42;
P=30.973761;
Pt=195.078;
Pu=244;
Po=209;
K=39.0983;
Pr=140.90765;
Pm=145;
Pa=231.03588;
Ra=226;
Rn=222;
Re=186.207;
Rh=102.90550;
Rb=85.4678;
Ru=101.07;
Rf=261;
Sm=150.36;
Sc=44.955910;
Sg=266;
Se=78.96;
Si=28.0855;
Ag=107.8682;
Na=22.989770;
Sr=87.62;
S=32.065;
Ta=180.9479;
Tc=98;
Te=127.60;
Tb=158.92534;
Tl=204.3833;
Th=232.0381;
Tm=168.93421;
Sn=118.710;
Ti=47.867;
W=183.84;
Uub=285;
Uun=281;
Uuq=289;
Uuu=272;
U=238.02891;
V=50.9415;
Xe=131.293;
Yb=173.04;
Y=88.90585;
Zn=65.409;
Zr=91.224;