An Introduction to Physical Science
14th Edition
ISBN: 9781305079137
Author: James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher: Cengage Learning
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Chapter 11, Problem 12SA
To determine
Known elements exist at present and natural elements among them.
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1
An unknown element X has the
following isotopes: 14⁰X (89.00%
abundant) and 142X(11.00%
abundant). What is the average
atomic mass in amu of X?
4
7
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5
8
amu
3
6
9
0
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X
C
x 100
1
Consider bromine, which occurs
as a mixture of two isotopes:
bromine-79, with a natural
abundance of 50.7% and an
exact mass of 78.92 amu and
bromine-81, with a natural
abundance of 49.3% and an
exact mass of 80.92 amu. What
is the average atomic mass of
bromine?
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7
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8
amu
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6
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0
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X
C
x 100
The corresponding graph shows a group of points (a, b, c, d), which
represent the number of original nuclei (N) for the elements and the half-life
(T1/2) for each of them.
Nx106
20
16
12
8
4
50
Show Transcribed Text
G
II
a
100
C
1- What elements have equal radioactivity?
150
d
b
H
200
T12 (day)
Chapter 11 Solutions
An Introduction to Physical Science
Ch. 11.1 - Prob. 1PQCh. 11.1 - Prob. 2PQCh. 11.2 - How many naturally occurring elements are there?Ch. 11.2 - Prob. 2PQCh. 11.3 - What is the most common element in the Earths...Ch. 11.3 - Prob. 2PQCh. 11.4 - Prob. 1PQCh. 11.4 - Prob. 2PQCh. 11.4 - Prob. 11.1CECh. 11.5 - Prob. 1PQ
Ch. 11.5 - Prob. 2PQCh. 11.5 - Prob. 11.2CECh. 11.6 - Prob. 1PQCh. 11.6 - Which group is composed of monatomic gases, and...Ch. 11.6 - Prob. 11.3CECh. 11 - Prob. AMCh. 11 - Prob. BMCh. 11 - Prob. CMCh. 11 - Prob. DMCh. 11 - Prob. EMCh. 11 - Prob. FMCh. 11 - Prob. GMCh. 11 - Prob. HMCh. 11 - Prob. IMCh. 11 - Prob. JMCh. 11 - Prob. KMCh. 11 - Prob. LMCh. 11 - Prob. MMCh. 11 - Prob. NMCh. 11 - Prob. OMCh. 11 - Prob. PMCh. 11 - Prob. QMCh. 11 - Prob. RMCh. 11 - Prob. SMCh. 11 - Prob. TMCh. 11 - Prob. UMCh. 11 - Prob. VMCh. 11 - Prob. WMCh. 11 - Prob. XMCh. 11 - Prob. YMCh. 11 - Prob. 1MCCh. 11 - A solute crystal dissolves when added to a...Ch. 11 - Prob. 3MCCh. 11 - Which of these is a synthetic element? (11.2) (a)...Ch. 11 - Prob. 5MCCh. 11 - Prob. 6MCCh. 11 - Prob. 7MCCh. 11 - Which one of these elements has the greatest...Ch. 11 - Prob. 9MCCh. 11 - Which of these is the technical name for Ag3PO4?...Ch. 11 - Which of these is the technical name for SF4?...Ch. 11 - Prob. 12MCCh. 11 - Prob. 1FIBCh. 11 - Prob. 2FIBCh. 11 - Hot water dissolves ____ solute than the same...Ch. 11 - Prob. 4FIBCh. 11 - Prob. 5FIBCh. 11 - Prob. 6FIBCh. 11 - Prob. 7FIBCh. 11 - Prob. 8FIBCh. 11 - Prob. 9FIBCh. 11 - Prob. 10FIBCh. 11 - Prob. 11FIBCh. 11 - Prob. 12FIBCh. 11 - Prob. 1SACh. 11 - Prob. 2SACh. 11 - Prob. 3SACh. 11 - When solid copper and zinc are mixed to form the...Ch. 11 - What type of process is involved in going from...Ch. 11 - What characteristic distinguishes an element from...Ch. 11 - Prob. 7SACh. 11 - Prob. 8SACh. 11 - Why does a carbonated beverage container sizzle...Ch. 11 - Prob. 10SACh. 11 - Prob. 11SACh. 11 - Prob. 12SACh. 11 - Prob. 13SACh. 11 - Prob. 14SACh. 11 - Prob. 15SACh. 11 - Prob. 16SACh. 11 - Prob. 17SACh. 11 - What formal term is applied to (a) the horizontal...Ch. 11 - Why are chemists so interested in the number of...Ch. 11 - Prob. 20SACh. 11 - Prob. 21SACh. 11 - Prob. 22SACh. 11 - Prob. 23SACh. 11 - Prob. 24SACh. 11 - Prob. 25SACh. 11 - Prob. 26SACh. 11 - Why is it necessary to use Greek prefixes when...Ch. 11 - Prob. 28SACh. 11 - Prob. 29SACh. 11 - Prob. 30SACh. 11 - Prob. 31SACh. 11 - Prob. 32SACh. 11 - Prob. 33SACh. 11 - Prob. 34SACh. 11 - Prob. 1VCCh. 11 - Prob. 1AYKCh. 11 - Prob. 2AYKCh. 11 - Prob. 3AYKCh. 11 - Prob. 4AYKCh. 11 - Prob. 5AYKCh. 11 - Prob. 6AYKCh. 11 - Consider the hypothetical case in which the charge...Ch. 11 - Prob. 8AYKCh. 11 - Prob. 1ECh. 11 - Classify each of the following materials as an...Ch. 11 - Prob. 3ECh. 11 - Prob. 4ECh. 11 - Prob. 5ECh. 11 - Prob. 6ECh. 11 - Prob. 7ECh. 11 - Prob. 8ECh. 11 - Prob. 9ECh. 11 - Give the name of each element: (a) Sb, (b) As, (c)...Ch. 11 - Prob. 11ECh. 11 - Prob. 12ECh. 11 - Prob. 13ECh. 11 - Prob. 14ECh. 11 - Prob. 15ECh. 11 - Prob. 16ECh. 11 - Prob. 17ECh. 11 - Prob. 18ECh. 11 - Prob. 19ECh. 11 - Prob. 20ECh. 11 - Prob. 21ECh. 11 - Prob. 22ECh. 11 - Prob. 23ECh. 11 - Prob. 24ECh. 11 - Prob. 25ECh. 11 - Prob. 26ECh. 11 - Prob. 27ECh. 11 - Name each of these common acids: (a) H3PO4(aq),...Ch. 11 - Prob. 29ECh. 11 - Prob. 30ECh. 11 - Prob. 31ECh. 11 - Prob. 32E
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- According to your lab partner, a 2.00-cm-thick sodium-iodide crystal absorbs all but 10% of lays from a radioactive source and a 4.00-cm piece of the same material absorbs all but 5%? Is this result reasonable?arrow_forwardData from the appendices and the periodic table may be needed for these problems. Unreasonable Results (a) Repeat Exercise 31.57 but include the 0.0055% natural abundance of 234U with its 2.45105y halflife. (b) What is unreasonable about this result? (c) What assumption is responsible? (d) Where does the 234U come from if it is not primordial?arrow_forwardA radioactive sample initially contains 2.40102 mol of a radioactive material whose half-life is 6.00 h. How many moles of the radioactive material remain after 6.00 h? After 12.0 h? After 36.0 h?arrow_forward
- Silver has two stable isotopes. The nucleus, 47107Ag , has atomic mass 106.905095 g/mol with an abundance of 51.83% ; whereas 47107Aghas atomic mass 108.904754 g/mol with an abundance of 48.17% . Find the atomic mass of the element silver.arrow_forwardHow many kilograms of water are needed to obtain the 198.8 mol of deuterium, assuming that deuterium is 0.01500% (by number) of natural hydrogen?arrow_forward(a) Calculate BE/A for 12C. Stable and relatively tightly bound, this nuclide is most of natural carbon. (b) Calculate BE/A for 14C. Is the difference in BE/A between 12C and 14C signi?cant? One is Stable and common, and the other is unstable and rare.arrow_forward
- Unreasonable Results The relatively scarce naturally occurring calcium isotope 48Ca has a halflife at about 21016y. (a) A small sample of this isotope is labeled as having an activity of 1.0 Ci. What is the mass of the 48Ca in the sample? (b) What is unreasonable about this result? (c) What assumption is responsible?arrow_forwardif you started with a parent isotope with 100% of its atoms and its half-life is 10 years. What is the parent/daughter percentage (P/D %) after two (2) have lives? a. 87.5%; 12.5% b. 75%; 25% c. 25%; 75% d. 12.5%; 87.5%arrow_forwardThe half-life of an element is 20 years. In how many years will there be 12.5% of the initial material remaining? Please show how to solvearrow_forward
- Element X has three naturally occurring isotopes. The masses (amu) and % abundances of the isotopes are given in the table below. The average atomic mass of the element is Isotope Mass 40x 13.01 40.10 41X 6.98 41.00 44X 79.99 43.98 a. 39.68 O b. 43.26 c. 39.07 O d. 38.64arrow_forward47 - 48. A radioactive substance has a half-life of approximately 10 years. If 25 g of the material was stored for 15 years, how much of the material would be left? O 1.9 g O 4.5 g O 9g O 2garrow_forwardElements that appear in the same column of the periodic table often share similar chemical properties. In the case of the alkaline earth metals, this is troublesome since the body treats calcium (necessary for proper bone growth) and radium (a radioactive element) as chemically similar, storing both in bone marrow. The radium then bombards nearby bone cells with alpha particles, causing them to "crumble." Radium poisoning investigations often center on the identification of radium and its isotopes in bone samples using lonized isotope a mass spectrometer. Pictured is a schematic of a simplified mass spectrometer that shows the paths of calcium isotopes, barium (another alkaline earth metal) isotopes, and radium isotopes entering the chamber. The region shown is immersed in a constant magnetic field of 0.552 T pointing out of the plane of the schematic. Motion of the positively-charged isotopes toward the right was initiated by a potential A -AV- B difference of 3082 V on the two plates…arrow_forward
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