

25 Which of the following contains an atom that does NOT obey the octet rule? out...
Which of the following does not obey the octet (or duet) rule? A. CH2O B. CCl4 C. SiF4 D. XeF4 E. HCCH (where the carbons are bonded to each other)
The element sulfur would be expected to form _______ covalent bond(s) in order to obey the octet rule. Use the octet rule to predict the formula of the compound that would form between sulfur and fluorine, if the molecule contains only one sulfur atom and only single bonds are formed.
10. Which of the following does not obey the octet rule? a) PCI b) H0 c) NH, d) CCI, 11. Which one of the following is the most polar a) H-F b) H-CI c) H- Br d) H-
Which of the following does NOT obey the octet rule? O SE O 02 O NO Cc C1
99 Write Lewis structures that obey the octet rule for the follow- ing species. Assign the formal charge for each central atom. a. POCI b. SO c. CIO4 d. PO3 es e. SO2C12 f. XeO4 n g. CIO3 h. NO3-
12. Use the octet rule to predict the number of bonds Si, P, Se, and Cl are likely to make in a molecule. a. four, five, six, seven, respectively b. three, three, two, two, respectively four, three, two, one, respectively d. four, one, one, one, respectively e. four, four, three, three, respectively 13. (ACS question) How many nonbonding pairs of electrons are on the central atom in IF3? a 4 b. 3 6.2 d. 1 e. O 14. Select the...
Write Lewis structures that obey the octet rule for each of the following.a. HCNb. PH3c. CHCI3d. NH4+e. H2COf. SeF2g. CO2h. O2i. HBr
QUESTION 1 Assuming that the octet rule is not violated, draw the Lewis structure of the most important resonance form of the AsO4 ion and choose the formal charge for the central atom in that ion. A. As = +1 B. As = -1 C. As = 0 D. As = +3 E. none of these
a) Draw the Lewis structure of PCl5. b)Does the central atom violate the octet rule? (yes/no) c) How many lone pairs of electrons are in the molecule? d) How many bonding pairs are in the molecule? e) What is the geometry of the molecule around the central atom?
The central atom of a molecule that exceeds the octet rule must come from period ______ or below. a. 2 b. 4 c. 5 d. 1 e. 3