Formation of Chloride ion from Chlorine atom

Today we are going to learn the formation of chloride ion from chlorine atom with complete explanation. In this article, the most valuable questions have been included.

 

 Formation of Chloride ion from Chlorine atom

We know that an atom of chlorine contains 17 protons and 17 electrons. In this state chlorine atom is neutral.

Its outermost shell contains 7 electrons and needs one electron to complete its octet to become stable.

Electronic configuration of chlorine

 

The chlorine atom has 17 electrons that are distributed in different energy levels

 

`1s^2 2s^2 2p^6 3s^2 3p^5`

In the last shell (valence shell) `3^rd`  [M], it has 7 electrons

 

Formation of chloride ion

We know each atom wants a stable electronic configuration like noble gases and to do so an atom donates or gains electrons.

The chlorine atom accepts or gains 1 electron in the outermost shell to complete its octet.

After accepting one electron, its electronic configuration changes

 

 

Chloride ion electron configuration

`1s^2 2s^2 2p^6 3s^2 3p^6`

Now chlorine atoms at this state possess 17 protons and 18 electrons.

Due to one extra negative charge (electron), the chlorine atom becomes a chloride ion.

FAQS

   1.   What is the charge of chloride ion?

Ans – Chloride ion has one negative charge.

   2.   What is the difference between chlorine atom and chloride ion?

Ans – Chlorine atoms has 17 protons and 17 electrons so it is neutral while chloride ion has 17 protons and 18 electrons and has 1 negative charge on it.

   3.   How many electrons are there in chloride ion?

    Ans – Chloride ion has 18 electrons.

   4.   Which process changes a chlorine atom into a chloride ion?

   Ans – Gaining or accepting one electron changes a chlorine atom into a chloride ion.

   5.   How many protons are in a chloride ion?

    Ans – Chloride ion contains 17 protons.

   6.   What is the number of valence electrons in chloride ion?

Ans- Chloride ion has 8 valence electrons.

   7.   What ion does the chlorine atom form?

Ans – The chlorine atom forms a chloride ion(anion).

   8.   Why does chlorine become chloride?

Ans-  To achieve a stable electron configuration similar to Argon, chlorine becomes a chloride ion. This process occurs in a chemical reaction.

Related Topics

1. Formation of Sodium ion

2. Chemical Properties of Metals

3. Physical Properties of Metal

4. Formation of Sodium Chloride