Concept explainers
(a)
Interpretation:
The number of protons, neutrons, and electrons in samarium-153 should be predicted.
Concept Introduction:
Also, the number of protons is equal to the number of electrons present in a neutral atom.
Mass number is equal to the number of protons and neutrons in an atom.
(b)
Interpretation:
A balanced
Concept Introduction:
The reactions involving formation of new nucleus with emission of some radiation along with it from an original nucleus are known as nuclear reactions.
To write a nuclear reaction the chemical equation for the reaction must be balanced that is the sum of atomic number and mass number on both the side should be equal.
(c)
Interpretation:
The activity of the solution after 8 days should be predicted.
Concept Introduction:
The number of disintegrations per second in eachsample in radioactive decay process is termed as activity and is denoted by A.
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General, Organic, and Biological Chemistry - 4th edition
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