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

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

You are watching: Chlorine has how many valence electrons

The #3s^2 3p^5# electrons room the outermost electrons, so chlorine has actually seven valence electrons.

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

You have the right to see in the diagram below that over there are seven electrons in the outermost circle. Additionally, a more basic way of determining the variety of valence electrons would certainly be to simply look at what team Cl is in.

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

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

The electronic configuration the chlorine atom is:-E.C - K together M 2 8 7Where k, l, ,m are the shells/orbits/ energy levels of an chlorine atom.

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

Here, stable way that atom has not formed a ion yet.  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 nucleus of one atom.All the atom of an element have very same atomic number.

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

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

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

The power shells of one atom space in the bespeak K, L, M …

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

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

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

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

Here is a video which provides a quick discussion of how to determine how numerous valence electrons atoms of different facets have.Video from: Noel Pauller 