Concept explainers
(a)
Interpretation:
The structure of ammonium ion has to be identified using VSEPR theory.
Concept Introduction:
Determination of structure using VSEPR theory:
- 1) The Lewis structure of the molecule is drawn.
The representation of valence shell electrons around the atom is known as Lewis structure or Lewis dot structure. Electrons are represented as a dot in Lewis structures, a single dot represents unpaired electron and paired of dots represents paired electrons.
- 2) The electron pairs surrounding the central atom are counted and the electron pairs are arranged with minimum repulsion. Thus arrangements of electron pairs are determined.
- 3) The positions of other atoms are determined.
- 4) The molecular structure is then identified.
(b)
Interpretation:
The molecular structure of sulfite ion has to be identified using VSEPR theory.
Concept Introduction:
Refer part (a).
(c)
Interpretation:
The structure of phosphate ion has to be identified using VSEPR theory.
Concept Introduction:
Refer part (a).
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