The major resonance structure has one double bond. CHALLENGE: What are the formal charges here? Do you think a bent molecule has a dipole moment? Which direction does it point? Hint: Try drawing the resonance hybrid structure, and consider dipole moment vector diagrams like these when determining how to draw your dipole moment vector.
A flow dipole is a separation of a sink and a source. In a highly viscous medium, a two-beater kitchen mixer causes a dipole flow field. An acoustic dipole is the oscillating version of it. A simple example is a dipole speaker. Any scalar or other field may have a dipole moment. Dipoles can be characterized by their dipole moment, a vector ...
Calculated electric dipole moments for NO 2 (Nitrogen dioxide). Electric quadrupole moment Calculated electric quadrupole moments for NO 2 (Nitrogen dioxide).
Dipole Moments. For each of the following, determine if the molecule would have a dipole moment (polar or nonpolar): 1. Draw the Lewis Dot Structure for each. 2. Determine the Electron Arrangement . 3. Draw the Molecular Geometry. 4. Find the electronegativities for each atom and draw an arrow along the bond toward the most electronegative element
Best Answer: You must look at electronegativity values, and also the shape of the ion or molecule. (NO2)- is bent, with a lone pair on the N. The O atoms are more electronegative than the N atom, so the N has a slight positive charge, and the O atoms share slightly more than a whole negative charge.
An example showing how to find whether or not each molecule has an overall molecular dipole moment (i.e., is polar or nonpolar). VSEPR and Molecular Geometry. General Chemistry.
Dipole moments occur when there is a separation of charge. They can occur between two ions in an ionic bond or between atoms in a covalent bond; dipole moments arise from differences in electronegativity. The larger the difference in electronegativity, the larger the dipole moment.
NO2 (or nitrogen dioxide) is neutral as a gas, but can easily become NO2- (nitrite ion) in solution, demonstrating its polar nature. The polarity comes from the bent geometry of the molecule caused by the extra lone electron pair on the nitrogen.