Question

valency of chlorine in KCl​

Answer 1

Answer:

Chlorine has atomic number 17, it only needs 1 electron to complete its octet, thus cl has valency -1. ... And together Chlorine and potassium form Potassium chloride because the donated electron of potassium it was taken by the chlorine.

Explanation:

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Answer 2

It's very... very simple.

* Atomic number of Potassium -- K = 19. * Electron distribution = (2,8,8,1).

* Required electron to fulfill - To donate 1 electron to other elements.

* Valency = +1. (Donates electron).

* Atomic number of Chlorine -- Cl = 17.

* Electron distribution = (2,8,7).

* Required electron to fulfill = To receive 1 electron from other elements.

* Valency = -1. (Receives electron).

Potassium is metal (+ve) donate electron.

Chlorine is non-metal (-ve) accept electron.

Potassium donate 1 electron and Chlorine receives 1 electron. So, the formula is KCl.