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valency table for some ionic compounds, Cheat Sheet of Chemistry

Chemistry

valency table for some ionic compounds

Typology: Cheat Sheet

2023/2024

Uploaded on 06/21/2025

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Valency of Common Monatomic and Polyatomic Ions
Positive Ions Negative Ions
+1 +2 +3 +4 โ€“1 โ€“2 โ€“3
Monatomic Ions
H+
hydrogen
Be2+
beryllium
Al3+
aluminium
Pb4+
lead (IV)
Fโ€“
fluoride
O2โ€“
oxide
N3โ€“
nitride
Li+
lithium
Mg2+
magnesium
Co3+
cobalt (III)
Sn4+
tin (IV)
Clโ€“
chloride
S2โ€“
sulfide
P3โ€“
phosphide
Na+
sodium
Ca2+
calcium
Cr3+
chromium (III)
Brโ€“
bromide
K+
potassium
Sr2+
strontium
Fe3+
iron (III)
Iโ€“
iodide
Ag+
silver
Ba2+
barium
Au3+
gold (III)
Cu+
copper (I)
Ni2+
nickel
Mn3+
manganese (III)
Au+
gold (I)
Cd2+
cadmium
Zn2+
zinc
Cr2+
chromium (II)
Co2+
cobalt (II)
Cu2+
copper (II)
Fe2+
iron (II)
Mn2+
manganese (II)
Pb2+
lead (II)
Sn2+
tin (II)
Polyatomic Ions
NH4+
ammonium
CH3COOโ€“
acetate
CO32โ€“
carbonate
PO43โ€“
phosphate
HCO3โ€“
hydrogen carbonate
SO42โ€“
sulfate
OHโ€“
hydroxide
NO3โ€“
nitrate

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www.goodscience.com.au

Valency of Common Monatomic and Polyatomic Ions

Positive Ions Negative Ions +1 +2 +3 +4 โ€“1 โ€“2 โ€“ Monatomic Ions

H+

hydrogen Be2+ beryllium Al3+ aluminium Pb4+ lead (IV)

Fโ€“

fluoride

O2โ€“

oxide

N3โ€“

nitride Li+ lithium Mg2+ magnesium Co3+ cobalt (III) Sn4+ tin (IV) Clโ€“ chloride

S2โ€“

sulfide

P3โ€“

phosphide Na+ sodium Ca2+ calcium Cr3+ chromium (III) Brโ€“ bromide K+ potassium Sr2+ strontium Fe3+ iron (III)

Iโ€“

iodide Ag+ silver Ba2+ barium Au3+ gold (III) Cu+ copper (I) Ni2+ nickel Mn3+ manganese (III) Au+ gold (I) Cd2+ cadmium Zn2+ zinc Cr2+ chromium (II) Co2+ cobalt (II) Cu2+ copper (II) Fe2+ iron (II) Mn2+ manganese (II) Pb2+ lead (II) Sn2+ tin (II) Polyatomic Ions

NH 4 +

ammonium

CH 3 COOโ€“

acetate

CO 3 2โ€“

carbonate

PO 4 3โ€“

phosphate HCO 3 โ€“ hydrogen carbonate

SO 4 2โ€“

sulfate OHโ€“ hydroxide NO 3 โ€“ nitrate