4 lone pair of electrons.

trigonal bipyramidal

There are a total of 40 valence electrons in the PCl5 Lewis structure. Remember when you draw the Lewis structure for PCl5 that Phosphorous (P) is in Period 3 on the Periodic table. This means that it can hold more than 8 valence electrons.

The PH3 Lewis structure has 8 valence electrons.

20 valence electrons

Each P atom has one lone pair of electrons and each covalent bond has two electrons of a bond pair. In a white phosphorus molecule, there are four lone pairs of electrons on four phosphorus atoms and six P−P single bonds are present. P−P−P bond angle is 60∘ in white phosphorus molecule.

The molecular formula of white phosphorus is P4. Four phosphorus atoms lie at the corners of the regular tetrahedron In the structure of White phosphorus. Each phosphorus atom is linked to other three phosphorus atoms by covalent bonds. The bond length of P-P is 2.21 A and PPP angle is 60 degrees.

White phosphorus ) exists as molecules made up of four atoms in a tetrahedral structure. The tetrahedral arrangement results in ring strain and instability. The molecule is described as consisting of six single P–P bonds. Two crystalline forms are known.

The P-P-P bond angle in a tetrahedral P4 molecule is only 60o.

There are a total of six bonds and four lone pairs molecule in white phosphorus. phosphorus atomic size is more so it can form single bond with other phosphorus atoms.

Trigonal bipyramidal: Five electron groups involved resulting in sp3d hybridization, the angle between the orbitals is 90°, 120°.

The Hybridization of PO43- is Sp3.

tetrahedral

SF2 Shape. In the Lewis Structure of SF2, the central atom forms two bonds with two Fluorine atoms and has two lone pairs of electrons. The two lone pairs of electrons push the Fluorine atoms downwards due to the repulsive forces, and as a result, the shape of this molecule is bent.

Sulfur difluoride

PHOSPHORUS PENTAFLUORIDE

Dinitrogen trioxide

Sodium bromide

Magnesium bromide

Sodium carbonate

Barium sulfate

Since BaSO4 is a precipitate, it does not need to be split up into ions. These are called spectator ions, and do not take part in the reaction. They can therefore be crossed out from the net ionic equation.

white

BaSO4 is called Barium sulfate. It is a salt. A salt can be produced from the reaction of acids and bases. If we track down the reaction of the production of BaSO4, we can see that Ba^2+ comes from the base and SO4^2- comes from the acid.

Barium sulfate is a strong electrolyte.

NH 4Cl is an example of an acid saltAn ionic compound whose aqueous solution is slightly acidic..

Barium sulfate may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

• stomach cramps.
• diarrhea.
• nausea.
• vomiting.
• constipation.
• weakness.
• pale skin.
• sweating.