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When a molecule or polyatomic ion has only one central atom, the molecular structure completely describes the shape of the molecule. Larger molecules do not have a single central atom, but are connected by a chain of interior atoms that each possess a “local” geometry.
- Molecular Shape
A molecule with the formula AB 3, in which A and B represent...
- Problems
When two electrons are removed from the valence shell, the...
- Molecular Shape
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15 sie 2020 · What two features of a molecule’s structure and bonding are required for a molecule to be considered polar? Is COF 2 likely to have a significant dipole moment? Explain your answer.
2 dni temu · According to the molecular formula, there are two nitrogen atoms and four oxygen atoms are present in the N2O4 molecule. There are 5 valence electrons present in the outermost shell of the nitrogen atom and in oxygen atoms; there are 6 valence electrons present.
The simplest compound of nitrogen is molecular nitrogen, \(\mathrm{N}_{2}\). The two nitrogen atoms are bonded together by a triple bond, consisting of a \(\sigma\) and two \(\pi\) bonds.
Valence shell electron-pair repulsion theory (VSEPR theory) enables us to predict the molecular geometry, including approximate bond angles around a central atom, of a molecule from an examination of the number of bonds and lone electron pairs in its Lewis structure.
In a water molecule, oxygen has 2 Lone Pairs of electrons and 2 bonded hydrogen atoms, giving it a steric number of 4 and an AXE formula of AX 2 E 2. Using Table 4.1, we see that the shape of H 2 O is bent.
