Which of the following statements is true? Answer each with Y or N. la) A hydrog

Question

Which of the following statements is true? Answer each with Y or N. la) A hydrogen atom has a (slightly) smaller mass than the sum of the masses of one electron and one proton (its constituents). lb) The so-called mass defect in nuclei provides the only example for Einstein's E = mc^2. lc) The equivalence of mass and energy is more apparent in nuclear reaction, because the relevant binding energies are very large relative to the mass of the nucleons (up to nearly 1% of mc^2). 1d) If a nucleus A fissions spontaneously into two fragments A1 and A2 (and no other remnants), the mass of A must be less than the mass of A1 plus the mass of A2. (Careful!)

Explanation / Answer

1a. Y

1b. Y

1c. Y

1d. N

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