If a nucleus undergoes positron particle emission
A) its atomic number decreases by four and its mass number decreases by two.
B) its atomic number decreases by two and its mass number decreases by four.
C) its atomic number increases by one and its mass number is unchanged.
D) its atomic number decreases by one and its mass number is unchanged.
E) its atomic number is unchanged and its mass number decreases by one.
Correct Answer:
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Q8: If a nucleus emits an alpha particle,_.
A)
Q10: Which of the following reactions is an
Q11: Which of the following reactions is an
Q12: How many alpha decays are required to
Q14: Which of the following symbols represents a
Q15: What is the product nuclide if
Q17: If a nucleus gains a neutron and
Q17: If astatine-207 decays by
Q18: When a nucleus undergoes radioactive decay,its new
Q18: Which particle does the nuclide symbol
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