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: Number of valence electrons in cl

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

In a picture, the valence electrons are the ones in the outermost shell.

You deserve to see in the diagram below that there are seven electrons in the outermost circle. Additionally, a an ext basic method of determining the number of valence electrons would be to merely look in ~ what group Cl is in.

It is in team 17, which means it has 7 valence electrons.  Shivangi Mangotra
Oct 27, 2014

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

The digital configuration of 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 room the variety of electrons present in the outermost covering of one atom. Now, the last shell of chlorine atom has 7 electrons in it. Therefore, there are 7 valence electrons present in one chlorine atom.

Here, stable way that atom has not developed a ion yet.  Ernest Z. · mrpauller.weebly.com
Oct 27, 2014

Chlorine has actually seven valence electrons.

Chlorine has atomic number 17.

The atom number is the number of protons existing in the nucleus of one atom.All the atoms of an aspect have very same atomic number.

In every stable atom the number of electrons is same to the number of protons. Stable means that atom has not created a ion yet.

Therefore, the number of electrons is same to the number of protons in one chlorine atom.

This means, that the variety of electrons present in an chlorine atom is 17.

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

So the digital configuration that chlorine atom is: K, L, M = 2, 8, 7

Valence electrons space the number of electrons existing in the outermost shell of one atom.

The last shell of a chlorine atom has actually 7 electron in it.

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Therefore, there are 7 valence electrons in an chlorine atom.

Here is a video which gives a quick conversation of just how to determine how countless valence electrons atom of different elements have.Video from: Noel Pauller 