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 valence electrons does cl have

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

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

You can see in the diagram below that over there are seven electrons in the outermost circle. Additionally, a an ext basic means of determining the number of valence electrons would certainly be to simply look at what group Cl is in.

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

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

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

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

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

Chlorine has actually seven valence electrons.

Chlorine has actually atomic number 17.

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

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

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

This means, the the variety of electrons existing in one chlorine atom is 17.

The energy shells of one atom room in the stimulate K, L, M …

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

Valence electrons room the number of electrons current in the outermost covering of an atom.

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

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

Here is a video clip which gives a quick conversation of exactly how to recognize how countless valence electrons atoms of different aspects have.Video from: Noel Pauller 