(a)
Interpretation: the given compounds are needed to be placed to the given conditions by using Arkel diagram.
Concept introduction:
In Arkel diagram,
- Down-left portion shows metallic compounds.
- Down-right portion shows covalent compounds.
- Down-mid (in between metallic and covalent) shows semiconducting compounds.
- Top shows ionic compounds.
(b)
Interpretation: the given compounds are needed to be placed to the given conditions by using Arkel diagram.
Concept introduction:
In Arkel diagram,
- Down-left portion shows metallic compounds.
- Down-right portion shows covalent compounds.
- Down-mid (in between metallic and covalent) shows semiconducting compounds.
- Top shows ionic compounds.
(c)
Interpretation: the given compounds are needed to be placed to the given conditions by using Arkel diagram.
Concept introduction:
In Arkel diagram,
- Down-left portion shows metallic compounds.
- Down-right portion shows covalent compounds.
- Down-mid (in between metallic and covalent) shows semiconducting compounds.
- Top shows ionic compounds.
(d)
Interpretation: the given compounds are needed to be placed to the given conditions by using Arkel diagram.
Concept introduction:
In Arkel diagram,
- Down-left portion shows metallic compounds.
- Down-right portion shows covalent compounds.
- Down-mid (in between metallic and covalent) shows semiconducting compounds.
- Top shows ionic compounds.
(e)
Interpretation: the given compounds are needed to be placed to the given conditions by using Arkel diagram.
Concept introduction:
In Arkel diagram,
- Down-left portion shows metallic compounds.
- Down-right portion shows covalent compounds.
- Down-mid (in between metallic and covalent) shows semiconducting compounds.
- Top shows ionic compounds.
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Check out a sample textbook solutionChapter 21 Solutions
Chemistry & Chemical Reactivity
- Use principles of atomic structure to answer each of the following: (1] (a) The radius of the Ca atom is 197 pm; the radius of the Ca2* ion is 99 pm. Account for the difference. (b) The lattice energy of CaO(s) is –3460 kJ/mol; the lattice energy of K20 is –2240 kJ/mol. Account for the difference. (c) Given these ionization values, explain the difference between Ca and K with regard to their first and second ionization energies. Element First lonization Energy (kJ/mol) Second lonization Energy (kJ/mol) K 419 3050 Ca 590 1140 (d) The first ionization energy of Mg is 738 kJ/mol and that of Al is 578 kJ/mol. Account for this difference.arrow_forwardConsider the element silicon, Si. (a) Write its electron configuration.(b) How many valence electrons does a siliconatom have? (c) Which subshells hold the valenceelectrons?arrow_forwardWhich member of each pair is less metallic?(a) I or O(b) Be or Ba(c) Se or Gearrow_forward
- NaCl and KF have the same crystal structure. The only differencebetween the two is the distance that separates cationsand anions. (a) The lattice energies of NaCl and KF are givenin Table 8.1. Based on the lattice energies, would you expectthe Na¬Cl or the K¬F distance to be longer? (b) Use theionic radii given in Figure 7.8 to estimate the Na¬Cl andK¬F distances.arrow_forward(b) Shown below are two schematic band diagrams for silicon. Answer the following questions: (i) For phosphorous-doped silicon, draw a dashed line denoting the location of the additional state(s) created by the phosphorus at room temperature. Explain your answer. (ii) For phosphorous-doped silicon, draw a dashed line denoting the location of electrons donated by the phosphorus at room temperature. Explain your answer. Conduction Conduction band band Band Band дар gap Valence Valence band band (i) (ii)arrow_forwardWhich compound in each of the following pairs has the larger lattice energy? Note: Ba2+ and K+ have similar radii; S2– and Cl– have similar radii. Explain your choices.(a) K2O or Na2O(b) K2S or BaS(c) KCl or BaS(d) BaS or BaCl2arrow_forward
- Which of the following compounds requires the most energy to convert one mole of the solid into separate ions?(a) K2S(b) K2O(c) CaS(d) Cs2S(e) CaOarrow_forwardFor many years after they were discovered, it was believed that the noble gases could not form compounds. Now we know that belief to be incorrect. A mixture of xenon and fluorine gases, confined in a quartz bulb and placed on a windowsill, is found to slowly produce a white solid. Analysis of the compound indicates that it contains 77.55% Xe and 22.45% F by mass.(a) What is the formula of the compound?(b) Write a Lewis structure for the compound.(c) Predict the shape of the molecules of the compound.(d) What hybridization is consistent with the shape you predicted?arrow_forwardMixing SbCl3 and GaCl3 in a 1:1 molar ratio using liquid sulfur dioxide as a solvent gives a solidionic compound with the empirical formula GaSbCl6. A controversy arose over whether this compoundis [SbCl2]+[GaCl4]− or [GaCl2]+[SbCl4]−.(a) Predict the molecular structure of the two anions from the two choices using VSEPR theory.(b) It is learned that the cation in the compound has a bent structure. Based on this fact, whichformulation is the correct one?arrow_forward
- The attractive force between a pair of Sr2+ and O2- ions is 1.52 x 108 N and the ionic radius of O2- ions is 0.134 nm. Calculate the ionic radius of the Sr2+ ion. (Given: Electron charge, e = 1.6 x 101ºC, the permittivity of free space, Eo = 8.85 x 101ºC²N'm²)arrow_forwardThe energy for the following reaction was measured to be -653.0 kJ/mol. K(g) + Cl(g) →→KCI(s). Using this fact and the data in the table below, calculate the enthalpy (in kJ/mol) required to separate the ions from the lattice for this reaction: KCI(s) → K+(g) + Cl-(g). Substance K (g) CI (g) Ionization Energies (kJ/mol) 418.8 1251.1 Electron Affinities (kJ/mol) -48.384 -349arrow_forwardWhich of the following trends in lattice energy is dueto differences in ionic radii? (a) NaCl > RbBr > CsBr,(b) BaO >KF, (c) SrO > SrCl2.arrow_forward
- Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning