Concept explainers
To Choose: The correct option.
Answer to Problem 9STP
Option C
Explanation of Solution
Introduction:
The mass number of an atom defined as the sum of neutrons and protons present in it. (Or isotopes of an element). The atomic number is equal to the number of protons present in the nucleus of the
Nickel is the naturally occurring stable element which is present in five isotopes. They are 58-Ni, 60-Ni, 61-Ni, 62-Ni, and 64-Ni.
All these isotopes of nickel have different
The atomic mass or mass number is the sum of protons and neutrons therefore, the isotopes of nickel have a different mass.
Conclusion:
The isotopes of elements have same atomic umber because the atomic number measured by the number of protons only for every element but each element has different mass because the neutrons vary in isotopes of the element.
Chapter 16 Solutions
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
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