Concept explainers
Interpretation: Whether the first statement and second statement are correct or not needs to be explained. Whether the second statement is the correct explanation for the first statement needs to be explained.
Concept introduction: Proton has a positive electric charge and has a mass of
Answer to Problem 19STP
Both the first and second statements are true and the second statement is the correct explanation of the first statement.
Explanation of Solution
The first statement states that the symbol for an alpha particle is
The second statement states that protons and neutrons have about the same mass. The mass of a proton is
Since the mass no of both proton and neutron is same, it can be concluded that both the first and second statements are true and the second statement is the correct explanation of the first statement.
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