Practice elements
Al
Aluminum
As
Arsenic
Ba
Barium
B
Boron
Br
Bromine
Ca
Calcium
C
Carbon
Cr
Chromium
Co
Cobalt
Cu
Copper
F
Fluorine
Au
Gold
He
Helium
H
Hydrogen
I
Iodine
Fe
Iron
Cl
Chlorine
Pb
Lead
Li
Lithium
Mn
Manganese
Mg
Magnesium
Hg
Mercury
Ne
Neon
Ni
Nickel
N
Nitrogen
O
Oxygen
P
Phosphorus
K
Potassium
Se
Selenium
Si
Silicon
Ag
Silver
Na
Sodium
S
Sulfur
Sn
Tin
U
Uranium
Zn
Zinc