Chapter 6: Q70E (page 277)
Question:Based on their positions in the periodic table, predict which has the smallest first ionization energy: Li, Cs, N, F, I.
Cs have the lowest first ionization energy.
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Question:In one area of Australia, the cattle did not thrive despite the presence of suitable forage. An investigationshowed the cause to be the absence of sufficient cobalt in the soil. Cobalt forms cations in two oxidation states, Co2+and Co3+. Write the electron structure of the two cations.
Question: Sketch the pxanddxzorbitals. Be sure to show and label the coordinates.
Atoms of which group in the periodic table have a valence shell electron configuration of\({\bf{n}}{{\bf{s}}^{\bf{2}}}{\bf{n}}{{\bf{p}}^{\bf{3}}}\)?
Question:Consider the orbitals shown here in the outline.
(a) What is the maximum number of electrons contained in an orbital of type (x)? Of type (y)? Of type (z)?
(b) How many orbitals of type (x) are found in a shell withn= 2? How many of type (y)? How many of type (z)?
(c) Write a set of quantum numbers for an electron in an orbital of type (x) in a shell withn= 4. Of an orbital of type
(y) in a shell withn= 2. Of an orbital of type (z) in a shell withn= 3.
(d) What is the smallest possiblenvalue for an orbital of type (x)? Of type (y)? Of type (z)?
(e) What are the possiblelandmlvalues for an orbital of type (x)? Of type (y)? Of type (z)?
Question:Write the electron configurations for the following atoms or ions:
(a) B3+
(b) O–
(c) Cl3+
(d) Ca2+
(e) Ti
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