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hydrogren
H (+)
lithium
Li (+)
sodium
Na (+)
potassium
K (+)
rubidium
Rb (+)
cesium
Cs (+)
silver
Ag (+)
magnesium
Mg (2+)
calcium
Ca (2+)
strontium
Sr (2+)
barium
Ba (2+)
zinc
Zn (2+)
cadmium
Cd (2+)
aluminum
Al (3+)
hydride
H (-)
flouride
F (-)
chloride
Cl (-)
bromide
Br (-)
iodide
I (-)
oxide
O (2-)
sulfide
S (2-)
nitride
N (3-)