Calculate the average atomic mass of an element that has an isotope with a mass of 35.00 amu (75% abundance) and another isotope with a mass of 37.00 (25% abundance). What is this element?
Calculate the average atomic mass of an element that has an isotope with a mass of 35.00 amu (75% abundance) and another isotope with a mass of 37.00 (25% abundance). What is this element?
World of Chemistry, 3rd edition
3rd Edition
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Chapter3: Chemical Foundations: Elements, Atoms, And Ions
Section: Chapter Questions
Problem 43A
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Calculate the average atomic mass of an element that has an isotope with a mass of 35.00 amu (75% abundance) and another isotope with a mass of 37.00 (25% abundance). What is this element? Make sure to prove this with your math calculations.
Transcribed Image Text:B IU
SA E I I
Compiete the following chart. All atoms on this chart are neutrai. Isotopes exampies
have been included, so an element may appear more than once.
element
atomic #
mass #
e-
n0
Ne
10
20
10
10
10
Na
11
23
11
11
12
Ni
28
59
28
28
31
Pb
82
207
82
82
125
Cn
112
277
112
112
165
CI
17
35
17
17
18
H.
1
1
1
1
C
12
6.
7
Ва
56
137
56
56
81
Rn
86
224
86
86
138
Tc
43
98
43
43
55
!!
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