The bond between the phosphorus atom and each hydrogen atom in phosphine gas is a covalent bond.
The shape of the phosphine gas molecule is pyramidal.
A covalent bond is a type of chemical bond where two atoms share pairs of electrons.
A dative covalent bond, also known as a coordinate covalent bond, is formed when one atom donates both electrons to be shared in a covalent bond with another atom.
The Lewis structure for the phosphonium ion PH₄⁺:
H
|
H - P - H
|
H
Phosphine is a gaseous chemical that is extremely poisonous. Phosphine gas is
represented below.
HH
What type of bond exists between the atoms in the phosphine gas molecule?
Identify the shape of the phosphine gas molecule.
Give the definition of this type of bond identified in Question 2.1.1.
Describe how a dative covalent bond is formed by referring to the formation of
Draw the Lewis Structure for the phosphonium ion PH,:
the phosphonium ion.
Figure 1: Diagram showing the phosphine gas molecule.
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