cesium
+
Cs
ammonium
+
NH
4
copper (I)
+
Cu
gold (I)
+
Au
hydrogen
+
H
lithium
+
Li
potassium
+
K
rubidium
+
Rb
silver
+
Ag
sodium
+
Na
barium
2+
Ba
beryllium
2+
Be
cadmium
2+
Cd
calcium
2+
Ca
chromium (II)
2+
Cr
cobalt (II)
2+
Co
copper (II)
2+
Cu
iron (II)
2+
Fe
lead (II)
2+
Pb
magnesium
2+
Mg
mercury (I)
2+
Hg
2
mercury (II)
2+
Hg
nickel
2+
Ni
strontium
2+
Sr