The formula to calculate the Beta Decay Q Value (Q) is:
\[ Q = (M_p - M_d) \cdot 931.494 \]
Where:
Let's say the mass of the parent nucleus (M_p) is 14.0031 u and the mass of the daughter nucleus (M_d) is 14.0030 u. Using the formula:
\[ Q = (14.0031 - 14.0030) \cdot 931.494 = 0.0001 \cdot 931.494 = 0.0931 \]
So, the beta decay Q value is 0.0931 MeV.