Question

which element does S represents? write the name and chemical formula of the compound formed by this element with sodium?

Answer 1

The S represents Sulphur
Sodium Sulphide is formed when it reacts with sodium.
Na2S

Answer 2

⏺️SULPHUR is represented by the symbol "S".

✔️ CHEMICAL FORMULA FORMED BY THIS COMPOUND = Na₂S

Na = SODIUM, S = SULPHUR.

✔️Na has Valency 1,

Because ELECTRONIC CONFIGURATION OF

Na = 2, 8, 1.

✔️ S has valency 2.

Because ELECTRONIC CONFIGURATION of S

S = 2, 8, 6.

So, by cross multiplication method,

The Formula of Compound becomes

⭕ Na₂S