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`._(29)^(64)` Cu can decay by `beta^(-)` or `beta^(+)` emmision, or electron capture. It is known that `._(29)^(64)` Cu has a half life of `12.8` hrs with 40% probability of `beta^(-)` decay 20% probability of `beta^(+)` decay and 40% probability of electron capture. The mass of `._(29)^(64)` Cu is `63.92977amu whil e `._(30)^(64) Zn is 63.92914 amu` and `._(28)^(64) Ni is 63.92796 amu`. What is the Q value of `beta^(-)` decay?A. `0.587` MeVB. `0.077` MeVC. `1.686` Me VD. `0.666` Me V |
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Answer» Correct Answer - A `Q-(63.92977-63.92914)xx931.5` `=0.00063xx931.5=0.587` MeV |
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