why the valency of the metal potassium is +1 and non metal chlorine is-1
Answers
Explanation:
No. of electrons in a single atom of Potassium is 19.
Therefore, It's electronic configuration is 2,8,8,1
Since, There is only 1 electron in the valence shell, It is much easier to lose the electron than gaining other electrons to stabilise.
The electron carries a negative charge and when the electron is lost, 1 negative charge is removed, then there is one proton more than the number of electrons making the charge of the atom +1, Therefore, Valency of Potassium is +1.
No. of electrons in a single atom of Chlorine is 17.
Therefore, It's electronic configuration is 2,8,7
Since, There are 7 electrons in the valence shell, It is much easier to gain the electron than losing other electrons to stabilise.
Electron carries a negative charge and when the electron is gained, 1 negative charge is added, then there is one electron more than the number of protons making the charge of the atom -1, Therefore, the valency of chlorine is -1.
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