7.99 What are the condensed electron configurations of the following ground-state atoms and ions? How many unpaired electrons are there in each? (а) К (b) K* (c) S- (d) N (е) Ва (f) Ti** (g) Al

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter5: Electron Configurations And The Periodic Table
Section: Chapter Questions
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7.99 What are the condensed electron configurations of the following ground-state atoms and
ions? How many unpaired electrons are there in each?
(а) К
(b) K*
(c) S²-
(d) N
(е) Ва
(f) Ti**
(g) Al
7.140 Interstellar Hydrogen Astronomers have detected hydrogen atoms in interstellar space
in the n = 732 excited state. Suppose an atom in this excited state undergoes a transition
from n = 732 to n= 731.
a. How much energy does the atom lose because of this transition?
b. What is the wavelength of radiation corresponding to this transition?
c. What kind of telescope would astronomers need to detect radiation of this wavelength?
(Hint: It would not be one designed to capture visible light.)
7.144 A green flame is observed when copper(II) chloride is heated in a
flame (Figure P7.144).
a. Write the ground-state electron configuration for copper atoms.
b. There are two common forms of copper chloride, copper(I)
chloride and copper(II) chloride. What is the difference in the
ground-state electron configurations of copper in these two
compounds?
Transcribed Image Text:7.99 What are the condensed electron configurations of the following ground-state atoms and ions? How many unpaired electrons are there in each? (а) К (b) K* (c) S²- (d) N (е) Ва (f) Ti** (g) Al 7.140 Interstellar Hydrogen Astronomers have detected hydrogen atoms in interstellar space in the n = 732 excited state. Suppose an atom in this excited state undergoes a transition from n = 732 to n= 731. a. How much energy does the atom lose because of this transition? b. What is the wavelength of radiation corresponding to this transition? c. What kind of telescope would astronomers need to detect radiation of this wavelength? (Hint: It would not be one designed to capture visible light.) 7.144 A green flame is observed when copper(II) chloride is heated in a flame (Figure P7.144). a. Write the ground-state electron configuration for copper atoms. b. There are two common forms of copper chloride, copper(I) chloride and copper(II) chloride. What is the difference in the ground-state electron configurations of copper in these two compounds?
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