How Many Outer Atoms and Lone Pairs are Present in a Molecule with a Square Planar Shape?

Outer Atoms and Lone PaIrs In a Molecule wIth a Square Planar Shape

Square Planar Shape

Let’s start with square planar shape. What is square planar shape? Molecules with square planar shape forms when there are 4 atoms and 2 lone pairs on the central atom. How many outer atoms and lone pairs are present in a molecule with a square planar shape? There are 4 atoms and 2 lone pairs present in a molecule with a square planar shape.

In this article we will try to find an answer for ” how many outer atoms and lone pairs are present in a molecule with a square planar shape?

Outer Atoms and Lone Pairs in a Molecule with a Square Planar Shape

Which Molecule Has a Square Planar Shape

Which Molecule Has a Square Planar Shape? XeF4 is an example of a square planar molecule which is also called xenon tetrafluoride. XeF4 has 6 – sp3d2 (or d2sp3) hybrid orbitals – arranged at ninety degrees. Orbitals have the shape of octahedral. Central atom has 2 lone pairs of electrons. Remaining 4 atoms forms the square planar shape.

XeF4 Lewis Structure

Here you can see the Lewis Structure for XeF4:

XeF4 lewis structure
XeF4 Lewis Structure

What Makes a Molecular a Square Planar?

What makes a molecular a square planar? 4 atoms and 2 lone pairs on the central atom of the molecule forms the square planar shape.

Shapes of Molecules

There are 4 electron pairs in a tetrahedral shape. If there is no lone pairs and all of the electron pairs are bonds, then its molecular geometry is tetrahedral like NH3.

If there are 2 bonds and 2 lone pairs of electrons in the molecule, then its molecular geometry is bent like H2O.

Now here is a great source for your homeworks if you need to find molecular geometry of molecules:

Linear Molecular Geometry

BeCl2, CO2 and N3- have linear molecular geometry. There are 2 electron pairs in these molecules and there are 2 bonds and 0 lone pairs in linear molecular geometry.

Planar Molecular Geometry

BCl3, SO3 and CO3-2 have trigonal planar molecular geometry. There are 3 electron pairs in these molecules. And there are 3 bonds and 0 lone pairs in trigonal planar molecular geometry.

Angular Molecular Geometry

SO2, O3 and NO2- have angular molecular geometry. There are 3 electron pairs in these molecules. And there are 2 bonds and 1 lone pairs in angular molecular geometry.

Tetrahedral Molecular Geometry

CH4, NH4+ and PO4-3 have tetrahedral molecular geometry. There are 4 electron pairs in these molecules. And there are 4 bonds and 0 lone pairs in tetrahedral molecular geometry.

Trigonal Pyramid Molecular Geometry

H3O+, NH3 and XeO3 have trigonal pyramid molecular geometry. There are 4 electron pairs in these molecules. And there are 3 bonds and 1 lone pairs in trigonal pyramid molecular geometry.

Tetrahedral Angular Molecular Geometry

H2O, NH2- and ClO2- have tetrahedral angular molecular geometry. There are 4 electron pairs in these molecules. And there are 2 bonds and 2 lone pairs in tetrahedral angular molecular geometry.

Check out “How Many Electrons are in Strontium“.

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