Question

Variable valency observed in a) Na b) Cl c) Ca d) Fe​

Answer 1

Variable valency observed in

ANSWER

=(D) Fe

Answer 2

Explanation:

Element Atomic Number Valency

Valency of Hydrogen 1 ,1

Valency of Helium 2, 0

Valency of Lithium 3, 1

Valency of Beryllium 4 ,2

Valency of Boron 5, 3

Valency of Carbon 6 ,4

Valency of Nitrogen 7 ,3

Valency of Oxygen 8 ,2

Valency of Fluorine 9 ,1

Valency of Neon 10 ,0

Valency of Sodium (Na) 11 ,1

Valency of Magnesium (Mg) 12, 2

Valency of Aluminium 13 ,3

Valency of Silicon 14, 4

Valency of Phosphorus 15 ,3

Valency of Sulphur 16 ,2

Valency of Chlorine 17, 1

Valency of Argon 18 ,0

Valency of Potassium (K) 19, 1

Valency of Calcium 20 ,2

Valency of Scandium 21 ,3

Valency of Titanium 22 ,4

Valency of Vanadium 23 ,5,4

Valency of Chromium 24 ,2

Valency of Manganese 25 7, 4, 2

Valency of Iron (Fe) 26, 2, 3

Valency of Cobalt 27 ,3, 2

Valency of Nickel 28 ,2

Valency of Copper (Cu) 29 2, 1

Valency of Zinc 30 ,2

u can find your answer in this list