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PHYSICS

JAMB 2014 - Question 45

Physics 2014 JAMB Past Questions - Question 45: When an atom undergoes a beta decay ,the atomic number of the nucleus

Choose the correct answers from the options given.

When an atom undergoes a beta decay ,the atomic number of the nucleus

A: decreases by one

B: increases by one

C: becomes zero

D: remains unchanged

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Correct Answer

Explanation

in beta decay, the atomic number is increased by one unit and mass number remains unchanged.
When an atom undergoes beta decay, the atomic number of the nucleus changes. In beta decay, a neutron in the nucleus is converted into a proton, resulting in an increase in the atomic number by one. This means that the atom transforms into a different element with a higher atomic number.