Question

Elements having negative valency​

Answer 1

Answer:

Valency Element / Radical Symbol Ion

Monovalent [1] Chloride [Chlorine] Cl Cl1-

Hypochlorite ClO ClO1-

Chlorite ClO2 ClO21-

Chlorate ClO3 ClO31-

Perchlorate ClO4 ClO41-

Bromide [Bromine] Br Br1-

Hypobromite BrO BrO1-

Bromite BrO2 BrO21-

Bromate BrO3 BrO31-

Perbromate BrO4 BrO41-

Iodide [Iodine] I I1-

Hypoiodite IO IO1-

Iodite IO2 IO21-

Iodate IO3 IO31-

Periodate IO4 IO41-

Hydroxide OH OH1-

Nitrite NO2 NO21-

Nitrate NO3 NO31-

Bicarbonate [Hydrogen carbonate] HCO3 HCO31-

Bisulfite [Hydrogen sulfite] HSO3 HSO31-

Bisulfate [Hydrogen sulfate] HSO4 HSO41-

Dihydrogen phosphate H2PO4 H2PO41-

Cyanide CN CN1-

Cyanate CNO CNO1-

Thiocyanate SCN SCN1-

Permanganate MnO4 MnO41-

Acetate C2H3O2 C2H3O21-

Divalent [2] Oxide [Oxygen] O O2-

Peroxide O2 O22-

Carbonate CO3 CO32-

Sulfide S S2-

Sulfite SO3 SO32-

Sulfate SO4 SO42-

Thiosulfate S2O3 S2O32-

Biphosphate [Hydrogen phosphate] HPO4 HPO42-

Chromate CrO4 CrO42-

Dichromate Cr2O7 Cr2O72-

Oxalate C2O4 C2O42-

Trivalent [3] Phosphite PO3 PO33-

Phosphate PO4 PO43-

Note that a radical is a group of atoms of elements, e.g., sulfate radical [SO4]. An ion is any atom or group of atoms with a positive or negative charge due to loss or gain of electrons. Positively charged ions are called cations [e.g., Na1+], whereas negatively charged ions are called anions [e.g., Cl1-].

Explanation:

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