"The valency of oxygen is generally two, whereas sulphur shows valency of two, four, and six". Explain.

Account for the following: The valency of oxygen is generally 2, whereas sulfur shows valency of 2, 4 and 6.

The valency of sulphur is

Oxygen shows covalency of two while sulphur shows covalency upto six. Explain.

Variable valency is generally shown by-

Oxygen is gas whereas sulphur is solid at room temperature .Explain.

The family of metals having valency two