Concept explainers
Interpretation:
The number of neutrons or protons is same in atom needs to be explained.
Concept introduction:
An element consists of three subatomic particles: electrons, protons, and neutrons. The atomic nucleus is made up of neutrons and protons. Mass of number is calculated by:
Mass number
Answer to Problem 127A
The numbers of protons same for all isotope that is 40 but the number of neutrons are different as
Explanation of Solution
The given table is:
The Relative |
||
Element | Mass (amu) | Abundance (%) |
Zirconium-90 | ||
Zirconium-91 | ||
Zirconium-92 | ||
Zirconium-94 | ||
Zirconium-96 |
The atomic mass is equal to the mass number of the isotope.
For the
The number of protons =
For the
The number of protons =
For the
The number of protons =
For the
The number of protons =
For the
The number of protons =
From the calculation, it is proved that the number of protons is the same, whereas, the number of neutrons is changed. The main reason behind this is the number of protons is what determines the element. So, if it is changed, this means that the element is changed to another element, while neutrons can increase as the element becomes radioactive element.
In any element, the number of protons and electrons is always same but the number of neutrons will be different.
Chapter 4 Solutions
Chemistry: Matter and Change
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