Interpretation:
Molecular orbit theory is more accurate theory than
Concept introduction:
From above it becomes clear that no of atomic orbital is equal to molecular orbital.
No of atom in the given sample
Each sodium atoms have one atomic orbital so no. of atomic orbital in the given sample of sodium is equal to the no. of atom,
No. of molecular orbital in given sample is equal to no. of atomic orbital in given sample as from the above diagram
To determine: the no. of molecular orbitals present in the valence band of a sodium crystal with a mass of
Want to see the full answer?
Check out a sample textbook solutionChapter 7 Solutions
Chemistry: Structure and Properties
- What is the relationship between the structures of buckminsterfullerene and carbon nanotubes?arrow_forwardWhy is the C 60form of carbon called buckminsterfullerene?arrow_forward8.97 The doping of semiconductors can be done with enough precision to tune the size of the band gap in the material. Generally, in order to have a larger band gap, the dopant should be smaller than the main material. If you are a materials engineer and need a semiconductor that has lower conductivity thin pure silicon, what clement or elements could you use as your dopant? (You do not want either an n- or a p- type material) Explain your reasoning.arrow_forward
- Give the formula of a solid containing Si that is (a) molecular (b) ionic (c) network covalentarrow_forwardFor the carbon and nitrogen family hydrides, we have the following boiling points: Carbon Family,C Nitrogen Family,C CH4, 164 NH3, 33 SiH4, 112 PH3, 88 GeH4, 88 AsH3, 55 SnH4, 52 SbH3, 17 Account for the following: a The general trend in the boiling points of the binary hydrides. b The unusual boiling point of ammonia. c The observation that the nitrogen family hydrides have boiling points that are notably higher than those of the carbon family.arrow_forwardThe normal boiling point of SO2 is 263.1 K and that of NH3 is 239.7 K. At −40 °C, would you predict that ammonia has a vapor pressure greater than, less than, or equal to that of sulfur dioxide? Explain.arrow_forward
- Arrange the following substances in order of increasing strength of crystal forces: CO2, KCl, H2O, N2, CaO.arrow_forward• describe the arrangement of atoms in the common cubic crystal lattices and calculate the packing efficiency for a lattice.arrow_forwardAn amorphous solid can sometimes be converted to a crystalline solid by a process called annealing. Annealing consists of heating the substance to a temperature just below the melting point of the crystalline form and then cooling it slowly. Explain why this process helps produce a crystalline solid.arrow_forward
- Suppose that a crystal lattice is composed of a structure where anions, X, occupy all of the corners in each cell a cation, M, occupies the central octahedral hole. The formula for the compound is MX MX2 O M2X O MX3 M3X2arrow_forwardIdentify the set that contains compounds that form an ionic solid, a molecular solid, and a covalent- network solid. (A) Li2O, B203, BeO; (B) SiO2, P4010, Cl207; (C) Al203, P406, SIO2; (D) CO2, SiO2, GeO2;arrow_forwardQ1/A B) Describe the Bohr model of hydrogen atom. What are the shortcomings of the Bohr model? Prove that the atomic packing factor (APF) for the BCC crystal structure is 0.68.arrow_forward
- Chemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning
- Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning