A fictional element is found to have two naturally occurring isotopes. The first isotope has a % natural abundance of 68.91% and a mass of 22.1760 amu. The second isotope has a % natural abundance of 31.09% and a mass of 24.4396 amu, Calculate the average atomic mass of the element. Show work.
A fictional element is found to have two naturally occurring isotopes. The first isotope has a % natural abundance of 68.91% and a mass of 22.1760 amu. The second isotope has a % natural abundance of 31.09% and a mass of 24.4396 amu, Calculate the average atomic mass of the element. Show work.
Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter6: The Periodic Table And Periodic Law
Section6.3: Periodic Trends
Problem 19PP
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I need help with finding the atomic mass in question 9 please!
Transcribed Image Text:Protons are positively charged.
6.
Protons are found in the nucleus of the atom.
7.
Determine the number of protons, electrons, and neutrons in each of the following:
Electrons
Symbol
Protons
Neutrons
1
41
Са
20
55
Fe
26
23
Na
11
3
4
18
8
8. Define the term "atomic radius" and indicate its trend down a group and across a period.
9. A fictional element is found to have two naturally occurring isotopes. The first isotope has a % natural
abundance of 68.91% and a mass of 22.1760 amu. The second isotope has a % natural abundance of
31.09% and a mass of 24.4396 amu, Calculate the average atomic mass of the element. Show work.
4-12
periment 4 Elements and the Periodic Table
# H N
Expert Solution
Step 1
First isotope % natural abundance is = 68.91%
Atomic mass of first isotope = 22.1760 amu
Second isotope has a % natural abundance is = 31.09%
Atomic mass of second isotope = 24.4396 amu
Calculate the average atomic mass of the element.
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