One of the facts regarding one of the periodic table element
Palabras clave
lithium,
sodium,
potassium,
fr,
beryllium,
magnesium,
calcium,
strontium,
barium,
radium,
ying,
lanthanum,
titanium,
zirconium,
hafnium,
vanadium,
niobium,
tantalum,
chromium,
molybdenum,
tungsten,
technetium,
rhenium,
iron,
cobalt,
nickel,
copper,
zink,
silver,
gold,
hydrogen,
element