Author: Theodore E. Brown, H. Eugene LeMay, Bruce E. Bursten, Catherine Murphy, Patrick Woodward, Matthew E. Stoltzfus, John H. Nelson, Kenneth C. Kemp
Definition Definition Elements containing partially filled d-subshell in their ground state configuration. Elements in the d-block of the periodic table receive the last or valence electron in the d-orbital. The groups from IIIB to VIIIB and IB to IIB comprise the d-block elements.
Chapter 7, Problem 22E
(i)
Interpretation Introduction
To determine: The authenticity of the statement, “For a given period, the radii of the representative elements generally decrease from left to right across period.”
(ii)
Interpretation Introduction
To determine: The authenticity of the statement’ “The radii of the representative elements for the n=3 period are all larger than those of the corresponding elements in the n=2 period.”
(iii)
Interpretation Introduction
To determine: The authenticity of the statement, “For most of the representative elements, the change in radius from the n=2 to the n=3 period is greater than the change in radius from n=3 to n=4 .”
(iv)
Interpretation Introduction
To determine: The authenticity of the statement, “The radii of the transition elements generally increase moving from left to right within a period.
(v)
Interpretation Introduction
To determine: The authenticity of the statement, “The large radii of the Group 1A elements are due to their relatively small effective nuclear charges.”
From the given compound, choose the proton that best fits each given description.
a
CH2
CH 2
Cl
b
с
CH2
F
Most shielded:
(Choose one)
Least shielded:
(Choose one)
Highest chemical shift:
(Choose one)
Lowest chemical shift:
(Choose one)
×
Consider this molecule:
How many H atoms are in this molecule?
How many different signals could be found in its 1H NMR spectrum?
Note: A multiplet is considered one signal.
For each of the given mass spectrum data, identify whether the compound contains chlorine, bromine, or neither.
Compound
m/z of M* peak
m/z of M
+ 2 peak
ratio of M+ : M
+ 2 peak
Which element is present?
A
122
no M
+ 2 peak
not applicable
(Choose one)
B
78
80
3:1
(Choose one)
C
227
229
1:1
(Choose one)
Chapter 7 Solutions
Laboratory Experiments for Chemistry: The Central Science (14th Edition)
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.