A radioactive atom "X" emits a β-particle, thus the resulting atom will be:
Correct answer: B. Has an atomic number that is one more than that of "X"
- A. Must be very reactive chemically
- B. Has an atomic number that is one more than that of "X"
- C. Has a mass number that is one less than that of "X"
- D. Must be radioactive
Explanation
This statement is accurate. When a β-particle is emitted, the atomic number of the resulting atom is one greater than that of the original atom. This is because a β-particle is an electron (β-) with a charge of -1, and when it's emitted, it increases the atomic number by 1.
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