Is it possible for 2 Carbon atoms to have different mass numbers? How?

Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter2: Atoms Molecules And Ions
Section: Chapter Questions
Problem 2PS: Define mass number. What is the difference between mass number and atomic mass?
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Is it possible for 2 Carbon atoms to have different mass numbers? How?

Expert Solution
Step 1

Yes, it is possible for 2 Carbon atoms to have different mass numbers.

 

Step 2

Atoms of the same element that have different mass numbers are called ISOTOPES. They have the same number of protons but different numbers of neutrons.

Since Mass number= Number of protons+Number of neutrons

ISOTOPES of Carbon

Carbon-12, Carbon-13

 

 

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