[Review Topics] [References] Use the References to access important values if needed for this question. Please note that "geometry" refers to the molecular or ionic geometry. In the VSEPR model, the geometry of the regions defined by the electron pairs in the valence shell of an atom is called the electron-pair geometry. A. The Lewis diagram for NO₂ is: Recall that for predicting geometry, double and triple bonds count as only one electron pair region. The electron-pair geometry around the N atom in NO₂ is There are unshared pair(s) around the central atom, so the geometry of the NO₂ molecule is Submit Answer 20-N=0: B. The Lewis diagram for BeI₂ is: :I-Be-I: The electron-pair geometry around the Be atom in BeI₂ is There are unshared pair(s) around the central atom, so the geometry of the BeI₂ molecule is Retry Entire Group 9 more group attempts remaining Previous Email Instructor Next Save and Exit
Formal Charges
Formal charges have an important role in organic chemistry since this concept helps us to know whether an atom in a molecule is neutral/bears a positive or negative charge. Even if some molecules are neutral, the atoms within that molecule need not be neutral atoms.
Polarity Of Water
In simple chemical terms, polarity refers to the separation of charges in a chemical species leading into formation of two polar ends which are positively charged end and negatively charged end. Polarity in any molecule occurs due to the differences in the electronegativities of the bonded atoms. Water, as we all know has two hydrogen atoms bonded to an oxygen atom. As oxygen is more electronegative than hydrogen thus, there exists polarity in the bonds which is why water is known as a polar solvent.
Valence Bond Theory Vbt
Valence bond theory (VBT) in simple terms explains how individual atomic orbitals with an unpaired electron each, come close to each other and overlap to form a molecular orbital giving a covalent bond. It gives a quantum mechanical approach to the formation of covalent bonds with the help of wavefunctions using attractive and repulsive energies when two atoms are brought from infinity to their internuclear distance.
![Please note that "geometry" refers to the molecular or ionic geometry.
In the VSEPR model, the geometry of the regions defined by the electron pairs in the valence shell of an atom is called
the electron-pair geometry.
A. The Lewis diagram for NO₂ is:
Recall that for predicting geometry, double and triple bonds count as only one electron pair region.
The electron-pair geometry around the N atom in NO₂ is
There are
unshared pair(s) around the central atom, so the geometry of the NO₂ molecule is
$
B. The Lewis diagram for BeI₂ is:
:I-Be-I:
The electron-pair geometry around the Be atom in BeI₂ is
There are
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[Review Topics]
[References]
Use the References to access important values if needed for this question.
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unshared pair(s) around the central atom, so the geometry of the BeI₂ molecule is
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Retry Entire Group 9 more group attempts remaining
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Lewis structures are diagrams that represent the valence electrons of atoms within a molecule. Lewis structures are known as lewis dot structures or electron dot structures.
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