Question

Write the formulas for valency of metals and non metals

Answer 1

Answer:

• Valency and Oxidation State
• Valency and Oxidation State The valencies of the elements belonging to the s-block and the p-block of the periodic table are generally calculated as the number of valence electron or eight minus the number of valence electrons.

Answer 2

Answer:

valency of metals is always positive and for non metals is always negative

ex -> valency of sodium is +1 where valency of oxygen is -2