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Guideline: 1. When conducting analyses and explanations, ensure they are detailed enough to satisfy the demands of the question 2. The analyses and explanations are formed using an advanced level of Physics understanding and scientific terminology. Table with 2 isotopes of Potassium: 39K 42K Binding energy 5.76 x 10-11 (J) Electron count 19 Emission type Stable B- decay Mass Defect (u) 0.38557 Neutral atom's 39.96371 41.9624 mass (u) Neutron count 23 Proton count 19 Total mass (u) 42.34797 Electron mass: 0.000549 u Neutron mass: 1.007276 u Proton mass: 1.08665 u 1d) Provide a detailed and lengthy analysis into why "K cannot have B- emitter, but why 42K does have it