hydrogen=H
helium=He
lithium=Li
beryllium=Be
boron=B
carbon=C
nitrogen=N
oxygen=O
fluorine=F
neon=Ne
sodium=Na
magnesium=Mg
aluminium=Al
silicon=Si
phosphorus=P
sulfur=S
chlorine=Cl
argon=Ar
potassium=K
calcium=Ca
scandium=Sc
titanium=Ti
vanadium=V
chromium=Cr
manganese=Mn
iron=Fe
cobalt=Co
nickel=Ni
copper=Cu
zinc=Zn
gallium=Ga
germanium=Ge
arsenic=As
selenium=Se
bromine=Br
krypton=Kr
rubidium=Rb
strontium=Sr
yttrium=Y
zirconium=Zr
niobium=Nb
molybdenum=Mo
technetium=Tc
ruthenium=Ru
rhodium=Rh
palladium=Pd
silver=Ag
cadmium=Cd
indium=In
tin=Sn
antimony=Sb
tellurium=Te
iodine=I
xenon=Xe
caesium=Cs
barium=Ba
lanthanum=La
cerium=Ce
praseodymium=Pr
neodymium=Nd
promethium=Pm
samarium=Sm
europium=Eu
gadolinium=Gd
terbium=Tb
dysprosium=Dy
holmium=Ho
erbium=Er
thulium=Tm
ytterbium=Yb
lutetium=Lu
hafnium=Hf
tantalum=Ta
tungsten=W
rhenium=Re
osmium=Os
iridium=Ir
platinum=Pt
gold=Au
mercury=Hg
thallium=Tl
lead=Pb
bismuth=Bi
polonium=Po
astatine=At
radon=Rn
francium=Fr
radium=Ra
actinium=Ac
thorium=Th
protactinium=Pa
uranium=U
neptunium=Np
plutonium=Pu
americium=Am
curium=Cm
berkelium=Bk
californium=Cf
einsteinium=Es
fermium=Fm
mendelevium=Md
nobelium=No
lawrencium=Lr
rutherfordium=Rf
dubnium=Db
seaborgium=Sg
bohrium=Bh
hassium=Hs
meitnerium=Mt
darmstadtium=Ds
roentgenium=Rg
copernicium=Cn
nihonium=Nh
flerovium=Fl
moscovium=Mc
livermorium=Lv
tennessine=Ts
oganesson=Og