Concept explainers
How can you determine the number of neutrons in an atom if its mass number and its
Interpretation:
The number of neutrons in an atom needs to be determined, if its Atomic number and Mass number are given.
Concept introduction:
Mass number is the total number of protons and neutrons present in the nucleus of an atom. Atomic number is also referred as number of protons in an atom.
The atomic symbol is represented as follows:
Answer to Problem 61A
Explanation of Solution
The atomic symbol is represented as follows:
Given,
Atomic number is also referred as number of protons
Mass number of an atom is calculated as follows:
Also,
Number of neutrons = Mass number − Atomic number
Thus, the total neutrons present in an atom can be determined by subtracting Atomic number from Mass number
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