How many lone pairs of electrons are on the N atom in NH3?
| 0 |
| 1 |
| 2 |
| 3 |
Which molecule contains a triple bond?
| Cl2 |
| HCCH |
| O3 |
| Cl2CO |
Which of the following contains an atom that does not obey the octet rule?
| PBr3 |
| SO2 |
| RbCl |
| CI4 |
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Consider the molecule NH3, where N is the central atom. How many lone pairs of electrons are on the central atom (N) in this molecule?
1. For each compound, draw the Lewis dot structure, the number of lone pairs, and the number of electronic groups for the central atom. Each Lewis dot structure follows the octet rule: hydrogen has one bond, all other atoms are surrounded by a total of eight electrons. Each covalent bond counts as we clectrons. Each nonbonded pair of electrons (lone pairs) count as two electrons. The number of nonbonded electrons is how many electrons from the central atom are not...
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How many chemical bonds in sulfur trioxide? How many lone pairs are around the central atom (i.e., sulfur) in sulfur trioxide? [Hint: a chemical bond can be single, double, or triple bond in the absence of a resonance.] Group of answer choices Four chemical bonds and no lone pairs Three chemical bonds and one lone pair Three chemical bonds and no lone pairs Two chemical bonds and one lone pair
(3) (3 pts) How many lone pairs of electrons do you expect around the central atom in the following molecule?
(3) (3 pts) How many lone pairs of electrons do you expect around the central atom in the following molecule?
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