Valency of cation & anion/unit-1

Valency of Electropositive Ions/ Cations:

Sl. No.	Name	Symbol		Valency
1	Ammonium	⁺NH₄		1
2	Aluminium	Al⁺³		3
3	Antimony	Sb⁺³		3
4	Barium	Ba⁺²		2
5	Bismuth	Bi⁺³		3
6	Calcium	Ca⁺²		2
7	Cadmium	Cd⁺²		2
8	Chromium	Cr⁺³		3
9	Cobalt	Co⁺²		2
10	Copper	Cu	Cu⁺¹(cuprous) Cu⁺² (Cupric)	1 2
11	Hydrogen	H⁺¹		1
12	Iron	Fe	Fe⁺² (Ferrous) Fe⁺³ (Ferric)	2 3
13	Lead	Pb	Pb⁺² (Plumbous) Pb⁺⁴ (Plumbic)	2 4
14	Magnesium	Mg⁺²		2
15	Manganese	Mn	Mn⁺² (Manganous) Mn⁺³ (Manganic)	2 3
16	Mercury	Hg	Hg₂⁺² (Mercurous) Hg⁺² (Mercuric)	2 2
17	Nickel	Ni⁺²		2
18	Potassium	K⁺¹		1
19	Silver	Ag⁺¹		1
20	Sodium	Na⁺¹		1
21	Strontium	Sr⁺²		2
22	Tin	Sn	Sn+2 ( Stannous) Sn+4 (Stannic)	2 4
23	Zinc	Zn⁺²		2

Valency of Electronegative Ions/ Anions:

Sl. No.	Name	Symbol	Valency
1	Fluoride	F ‾	1
2	Chloride	Cl‾	1
3	Bromide	Br‾	1
4	Iodide	I‾	1
5	Hypochlorite	ClO‾	1
6	Hypobromite	BrO‾	1
7	Hypoiodite	IO‾	1
8	Chlorate	ClO₃‾	1
9	Bromate	BrO₃‾	1
10	Iodate	IO₃‾	1
11	Sulphide	S‾²	2
12	Sulphite	SO₃‾²	2
13	Sulphate	SO₄‾²	2
14	Bisulphide	HS‾	1
15	Bisulphite	HSO₃‾	1
16	Bisulphate	HSO₄‾	1
17	Thiosulphate	S₂O₃‾²	2
18	Tetrathionate	S₄O₆‾²	2
19	Nitride	N‾³	3
20	Nitrite	NO₂‾	1
21	Nitrate	NO₃‾	1
22	Hydroxide	‾OH	1
23	Oxide	O‾²	2
24	Hydride	H‾	1
25	Peroxide	O₂‾²	2
26	Carbonate	CO₃‾²	2
27	Bicarbonate	HCO₃‾	1
28	Carbide	C‾⁴	4
29	Phosphide	P‾³	3
30	Phosphite	HPO₃‾²	2
31	Phosphate	PO₄‾³	3
32	Borate	BO₃‾³	3
33	Acetate	CH₃COO‾	1
34	Oxalate	C₂O₄‾²	2
35	Cyanide	CN‾	1
36	Permanganate	MnO₄‾	1
37	Manganate	MnO₄‾²	2
38	Chromate	CrO₄‾²	2
39	Dichromate	Cr₂O₇‾²	2
40	Ferrocyanide	[Fe(CN)₆] ‾⁴	4
41	Ferricyanide	[Fe(CN)₆] ‾³	3
42	Arsenite	AsO₃‾³	3
43	Arsenate	AsO₄‾³	3
44	Zincate	ZnO₂‾²	2
45	Meta-aluminate	AlO₂‾	1
46	Aluminate	AlO₃‾³	3
47	Stannate	SnO₃‾²	2
48	Silicate	SiO₃‾²	2

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