alkali
Li
lithium
Mg
magnesium
Mn
manganese
oxygen
O
F
flourine
sodium
Na
calcium
Ca
iron
Fe
carbon
C
chlorine
Cl
potassium
K
strontium
Sr
Co
cobalt
sulfur
S
Br
bromine
Fr
francium
Ba
barium
Ti
titanium
boron
B
iodine
I
Cs
cesium
Ra
radium
Copper
Cu
Si
silicon
krypton
Kr