Mx and My denote the atomic masses of the parent and the daughter nuclei respectively in a radioactive decay- The Q-value for a -decay is Q1 and that for a- decay is Q2- If me denotes the mass of an electron- then which of the following statements is correct-

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Alpha Decay

Mx and My d...

Question

$M_{x}$ and $M_{y}$ denote the atomic masses of the parent and the daughter nuclei respectively in a radioactive decay. The $Q - v a l u e$ for a $β - d e c a y$ is $Q_{1}$ and that for $a β^{+}$ decay is $Q_{2}$ . If $m_{e}$ denotes the mass of an electron, then which of the following statements is correct?

Q_{1} = (M_{x} - M_{y}) c^{2}

and

Q_{2} = (M_{x} - M_{y} - 2 m_{e}) c^{2}

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Q_{1} = (M_{x} - M_{y}) c^{2}

and

Q_{2} = (M_{x} - M_{y}) c^{2}

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Q_{1} = (M_{x} - M_{y} - 2 m_{e}) c^{2}

and

Q_{2} = (M_{x} - M_{y} + 2 m_{e}) c^{2}

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Q_{1} = (M_{x} - M_{y} + 2 m_{e}) c^{2}

and

Q_{2} = (M_{x} - M_{y} + 2 m_{e}) c^{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

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Solution

The correct option is A $Q_{1} = (M_{x} - M_{y}) c^{2}$ and $Q_{2} = (M_{x} - M_{y} - 2 m_{e}) c^{2}$

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A nucleus X emits a beta particle to produce a nucleus Y. If their atomic masses are $M_{x}$ and $M_{y}$ respectively. The maximum energy of the beta particle emitted is (Hint: $β^{-}$ decay)

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Q. Let

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p (4) - q (4)

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Mx and My denote the atomic masses of the parent and the daughter nuclei respectively in a radioactive decay. The Q−value for a β−decay is Q1 and that for aβ+ decay is Q2. If me denotes the mass of an electron, then which of the following statements is correct?

The correct option is A Q1=(Mx−My)c2 and Q2=(Mx−My−2me)c2

The correct option is A $Q_{1} = (M_{x} - M_{y}) c^{2}$ and $Q_{2} = (M_{x} - M_{y} - 2 m_{e}) c^{2}$