Lewis framework of ClO3- ion is attracted step by action in this tutorial. Full valence electrons of oxygen and also chlorine atom and an unfavorable charge are considered to attract the ClO3- lewis structure. When we attracted the lewis structure, as whole charge the the ion need to be -1.

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Now, we are going come learn, exactly how to draw this lewis structure of ClO3- ion step by step.

Steps of drawing ClO3- lewis structure

Following measures are required to attract ClO3- lewis structure and they are described in detail in this tutorial.

find total number of electrons the the valance shells
that chlorine and also oxygen atoms and also including charge of the anion full electrons bag in valence shells Determine facility atom indigenous chlorine and oxygen atom put lone bag on atoms stability of lewis structure - examine the stability and minimize fees on atoms by converting lone pairs to bond to attain the finest structure.

Drawing exactly lewis framework is vital to draw resonance structures of ClO3-.

Total number of electrons of the valance shells that chlorine and also oxygen atoms and also charge of the anion

There space one chlorine atom and also three oxygen atoms in the chlorate ion. Additionally there is a -1 charge on the ClO3- ion.

Chlorine and also oxygen are located at 7 and also 6 groups respectively in the periodic table. Therefore chlorine has seven electrons in that valence shell. In oxygen atom, over there are 6 electrons in that is valence shell.

full valence electrons offered by chlorine atoms = 7*1 = 7

There are three oxygen atom in ClO3- , Therefore

Total valence electrons provided by oxygen atom = 6 *3 = 18

Due come -1 charge, an additional electrons is added

because of -1 charge, received electrons come valence electrons= 1
total valence electron = 7 + 18 + 1 = 26

Total valence electrons pairs

Total valance electrons bag = σ bonds + π bond + lone bag at valence shells

Total electron bag are identified by dividing the number complete valence electrons by two. For, ClO3- there room 26 valence electrons, so full pairs that electrons room 13.

Center atom of ClO3- ion

To it is in the center atom, capability of having greater valance is important. Chlorine can display valence 7. But, oxygen"s best valence is 2. Therefore chlorine has an ext chance to be the facility atom (See the figure). So, currently we can construct a map out of ClO3- ion.

map out of ClO3- ion

Lone pairs on atoms

over there are already three Cl-O bonds in the sketch. Therefore only ten valence electrons pairs
are continuing to be to draw the rest of ion. Following step is, noting those ten valence electrons pairs on external atoms (oxygen atoms) together lone pairs. One oxygen atom will certainly take 3 lone pairs following the octal dominance (oxygen atoms cannot keep an ext than eight electrons in their valence shells). Therefore, nine electrons bag are marked on 3 oxygen atoms. Now, one electrons pair (10-9) is remaining. Then, staying electron pair is significant on chlorine atom.

Check the stability of attracted structure that ClO3- ion and also reduce fees on atoms by convert lone bag to bonds

Check fees on atoms and also mark them together below. Fees are vital to decision the ideal lewis structure of the ion.


The drawn structure because that ClO3- is no a steady structure since oxygen atoms and also chlorine atoms have charges. Also, when charge of one atom is large, that structure become an ext unstable. Once a molecule or ion has so numerous charges ~ above atoms, that framework is no stable.

Now, us should try to minimization charges by converting lone pair or bag which exist on oxygen atom to bonds. For this reason we convert one lone pair of one oxygen atom as a Cl-O bond as in the adhering to figure.


Now there is a dual bond between chlorine and one oxygen atom. Over there are additionally two single bonds (Cl-O) v chlorine atom and other two oxygen atoms.

But, there are still dues on atoms. If possible, us should alleviate charges furthermore. One more lone pair on another oxygen atom is transferred as a Cl-O bond.


Now, there are twelve electrons about chlorine atom. This is acceptable since chlorine can keep much more than eight electrons chlorine has actually unfilled 3d orbits.

In new structure, fees of atom are decreased furthermore. Now there is no any type of charge on 2 oxygen atoms. Also, charge of chlorine atom is diminished to zero. Now you recognize this structure of ClO3- is much more stable than previous structure as result of less charges on atoms.

ClO3- Lewis structure


Ask her chemistry questions and find the answers What is the shape about chlorine atom in ClO3- ion?

There room three σ bonds and a one lone pair approximately chlorine atom in lewis framework of ClO3- ion. Therefore, form of ion is trigonal pyramidal.

How many charges in atoms of chlorate ion lewis structure?

Only one oxygen atom has a -1 charge. All other atoms execute not have actually charges. Therefore, all at once charge that chlorate ion is -1.

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clo3 lewis structure

There is no molecule or ion as ClO3. The correct formula the chlorate ion is ClO3-.

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