A emission of an alpha particle will change the mass

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a. Emission of an alpha particle will change the mass number by 2. True False b. Nuclear fission always involves the bombardment of a nucleus with a neutron . True False c. The mass defect arises because the sum of the component nucleons is less than the mass of the nucleus. True False d. The mass defect for a reaction that releases 450 kJ is -5.00 x 10 -12 kg . True False e. In an anionic complex ion, Cu 2+ would be named as copper(II) . True False f. The electron configuration of the Mn(IV) ion is [Ar]4s 2 3d 7 . True False g. Complexes containing Zn 2+ are expected to be colorless . True False h. The tetrahedral complex ion Mn(H 2 O) 4 3+ will have 4 unpaired electrons . True False
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3 2. (12 pt) Complete the following nuclear reactions. a. _________________ He At 4 2 217 85 + b. + + e Br 0 1 75 35 _________________ c. + + P He Al 30 15 4 2 27 13 _________________ d. _________________ + He Li Be 4 2 6 3 9 4 + 3. (8 pt) The binding energy per nucleon for Mg-27 is 1.326 x 10 -12 J/nucleon. Calculate the atomic mass of Mg-27 in amu (out to 5 decimal places). m p = 1.00728 amu, m n = 1.00866 amu, m e = 5.48580 x 10 -4 amu
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4 4. (10 pt) a. Polonium-218 is an alpha emitter with a half-life of 3.0 minutes. If a sample contains 55 mg of Po-218 (atomic mass = 218.008965 amu), how many alpha emissions occur in 2.5 minutes? b. At 8:00 AM, a patient receives a 58-mg dose of I-131 to obtain an image of her thyroid. If the nuclide has a half-life of 8 days, what mass of the nuclide remains in the patient at 5:00 PM the next day?
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5 5. (8 pt) Name the following complex ions and coordination complexes.
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