Shreyans Bhansali · Ernest Z. · Ramith Hettiarachchi · Christopher P. · dwayne

The electron construction of chlorine is #1s^2 2s^2 2p^6 3s^2 3p^5# or #""3s^2 3p^5#.

You are watching: How many additional valence electrons does chlorine need to have a full valence shell

The #3s^2 3p^5# electrons space the outermost electrons, for this reason chlorine has actually seven valence electrons.

In a picture, the valence electrons space the persons in the outermost shell.

You deserve to see in the diagram below that there are seven electrons in the outermost circle.

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Additionally, a an ext basic way of identify the number of valence electrons would certainly be to merely look at what team Cl is in.

It is in group 17, which way it has 7 valence electrons.

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Shivangi Mangotra
Oct 27, 2014

Chlorine has actually an atomic number 17. Atom number is the number of protons current in the cell nucleus of one atom. All the atom of an aspect have same atomic number. In every stable atom the number of electrons is equal to the variety of protons. Therefore, the variety of electrons is same to the variety of protons in an chlorine atom. This means, that the variety of electrons existing in an chlorine atom is 17.

The electronic configuration the chlorine atom is:-E.C - K l M 2 8 7Where k, l, ,m room the shells/orbits/ power levels of one chlorine atom.

Valence electrons space the number of electrons existing in the outermost shell of one atom. Now, the last shell of chlorine atom has 7 electrons in it. Therefore, there are 7 valence electrons current in an chlorine atom.

Here, stable method that atom has actually not created a ion yet.


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Ernest Z. · mrpauller.weebly.com
Oct 27, 2014

Chlorine has seven valence electrons.

Chlorine has atomic number 17.

The atomic number is the variety of protons present in the cell core of an atom.All the atoms of an element have same atomic number.

In every stable atom the variety of electrons is same to the variety of protons. Stable method that atom has not developed a ion yet.

Therefore, the number of electrons is equal to the variety of protons in an chlorine atom.

This means, the the number of electrons current in an chlorine atom is 17.

The energy shells of an atom room in the bespeak K, L, M …

So the electronic configuration of chlorine atom is: K, L, M = 2, 8, 7

Valence electrons are the number of electrons present in the outermost covering of one atom.

The last covering of a chlorine atom has 7 electrons in it.

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Therefore, there space 7 valence electron in one chlorine atom.

Here is a video clip which offers a quick discussion of exactly how to identify how numerous valence electrons atoms of different elements have.Video from: Noel Pauller


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