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 core electrons are in a chlorine atom

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 room the ones in the outermost shell.

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

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Additionally, a more basic way of identify the number of valence electrons would be to merely look in ~ 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 atom number 17. Atom number is the number of protons present in the cell core of an atom. Every the atom of an element have very same atomic number. In every stable atom the number of electrons is same to the variety of protons. Therefore, the variety of electrons is equal to the variety of protons in one chlorine atom. This means, that the number of electrons existing in one chlorine atom is 17.

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

Valence electrons are the number of electrons present in the outermost shell of an atom. Now, the last covering of chlorine atom has 7 electron in it. Therefore, there room 7 valence electrons present in an chlorine atom.

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


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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 variety of protons existing in the cell nucleus of an atom.All the atom of an element have exact same atomic number.

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

Therefore, the number 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 energy shells of an atom space in the bespeak K, L, M …

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

Valence electrons room the variety of electrons existing in the outermost covering of one atom.

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

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

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


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