beryllium
hydrogen
lithium
calcium
magnesium
potassium
sodium
cesium
rubidium
strontium
yttrium
barium
francium
radium
hafnium
scandium
titanium
zirconium
bohrium
dubnium
rutherfordium
seaborgium
niobium
tantalum
vanadium
molybdenum
rhenium
tungsten
chromium
iron
manganese
technetium
hassium
iridium
osmium
ruthenium
copernicium
darmstadtium
meitnerium
roentgenium
cobalt
nickel
palladium
rhodium
copper
gold
platinum
silver
cadmium
mercury
zinc
actinium
cerium
lanthanum
thorium
neodymium
praseodymium
promethium
protactinium
neptunium
plutonium
uranium
americium
curium
europium
samarium
berkelium
gadolinium
terbium
californium
dysprosium
holmium
erbium
thulium
ytterbium
einsteinium
fermium
mendelevium
lawrencium
lutetium
nobelium
boron
carbon
nitrogen
oxygen
sulfur
selenium
tellurium
aluminum
phosphorus
silicon
gallium
indium
thallium
antimony
arsenic
germanium
tin
flerovium
lead
moscovium
nihonium
bismuth
livermorium
polonium
astatine
oganesson
radon
tennessine
bromine
chlorine
fluorine
iodine
krypton
xenon
argon
helium
neon