Concept explainers
(a)
Interpretation:
The element with higher first ionization energy should be predicted from BiandXe.
Concept Introduction:
The amount of energy required to remove an electron from an isolated gaseous atom to form an ion is termed as ionization energy.
(b)
Interpretation:
The element with higher first ionization energy should be predicted from Se and Te.
Concept Introduction:
The amount of energy required to remove an electron from an isolated gaseous atom to form an ion is termed as ionization energy.
(c)
Interpretation:
The element with higher first ionization energy should be predicted from Rb andY.
Concept Introduction:
The amount of energy required to remove an electron from an isolated gaseous atom to form an ion is termed as ionization energy.
(d)
Interpretation:
The element with higher first ionization energy should be predicted from KandNe.
Concept Introduction:
The amount of energy required to remove an electron from an isolated gaseous atom to form an ion is termed as ionization energy.
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Principles of Modern Chemistry
- For each of the following pairs of atoms, state which youexpect to have the higher electron affinity: (a) Rb or Sr;(b) I or Rn; (c) Ba or Te; (d) Bi or Carrow_forwardFor each of the following pairs of atoms, state which you expect to have the higher first ionization energy. Briefly explain your reasoning: (a) Bi or Xe; (b) Se or Te; (c) K or Ne;arrow_forward7. Which element has the smallest first ionization energy? (a) Cs (b) Ga (c) K (d) Bi (e) As 8. Which element has the smallest second ionization energy? (a) Mg (b) Li (c) S (d) O (e) Ca 9. Which of the following sets contain all linear molecules? (a) H2S, HCN, CO2. (b) HCN, O2, CO2 (c) H2O, CO, Cl2. (d) H2S, CO, CO2. (e) BF3, Cl2, O2 10. The molecular geometry of SnCl3-ion is: (a) trigonal planar (b) T-shaped. (c) trigonal pyramidal. (d) Tetrahedral (e) see-saw 11. The geometry of the molecule SPC13 is best described as: (a) square planar (b) trigonal pyramidal (c) trigonal bipyramidal. (d) octahedral (e) tetrahedral 12. The O-S-Cl bond angles in O2SCl2 are expected to be approximately: (a) 90° (b) 109.5° (c) 120° (d)180 ° (e) 90° and 120°arrow_forward
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- Boron, atomic number 5, occurs naturally as two isotopes, 10B and 11B, with natural abundances of 19.9% and 80.1%, respectively.(a) In what ways do the two isotopes differ from each other? Does the electronic configuration of 10B differ from that of 11B? (b) Drawthe orbital diagram for an atom of 11B. Which electrons are the valence electrons? (c) Indicate three ways in which the 1s electrons inboron differ from its 2s electrons. (d) Elemental boron reacts with fluorine to form BF3, a gas. Write a balanced chemical equation forthe reaction of solid boron with fluorine gas. (e) ΔHf° for BF31g2 is -1135.6 kJ>mol. Calculate the standard enthalpy change in thereaction of boron with fluorine. (f) Will the mass percentage of F be the same in 10BF3 and 11BF3? If not, why is that the case?arrow_forwardWrite the electron configuration for each of the followingions, and determine which ones possess noble-gasconfigurations: (a) Sr2+, (b) Ti2+, (c) Se2-, (d) Ni2+, (e) Br-,(f) Mn3 + .arrow_forwardQ1. This question is about atomic structure. (a) Write the full electron configuration for each of the following species. CH Fe2+ (b) Write an equation, including state symbols, to represent the process that occurs when the third ionisation energy of manganese is measured. (c) State which of the elements magnesium and aluminium has the lower first ionisation energy Explain your answer. (d) A sample of nickel was analysed in a time of flight (TOF) mass spectrometer. The sample was ionised by electron impact ionisation. The spectrum produced showed three peaks with abundances as set out in the table. m/z Abundance /% 58 61.0 60 29.1 61 9.9 Give the symbol, including mass number, of the ion that would reach the detector first in the sample. Calculate the relative atomic mass of the nickel in the sample. Give your answer to one decimal place. Page 2 of 12 Symbol of ion Relative atomic massarrow_forward
- Principles of Modern ChemistryChemistryISBN:9781305079113Author:David W. Oxtoby, H. Pat Gillis, Laurie J. ButlerPublisher:Cengage Learning