Question Detail

PHY 104 Atomic Structures Objective Question

Question

In a beta-minus (β¯) decay, how does the proton number (Z) of the parent nucleus change?
Options
A It decreases by 1.
B It increases by 1.
Correct Answer
C It remains the same.
D It increases by 2.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 14 states for Beta minus Decay: "Neutron is converted to proton therefore; nucleon number A remains the same but proton number Z increases by 1 as a proton has been gained."

Hint

A neutron turns into a proton and an electron. What does gaining a proton do to the atomic number?

Question Info