The following problems are taken from T. L. Brown, H. E. Lemay, B. E. Bursten, & J. R. Burdge, Chemistry: The Central Science, Ninth Edition, Chapter 21.
12) Each of the following nuclei undergoes either beta or positron emission. Predict the type of emission for each:
(a) 6632Ge
(b) 10545Rh
(c) iodine-137
(d) cerium-133
16) In each of the following pairs, which nuclide would you expect to be the more abundant in nature and justify your choices:
(a) 11548Cd or 11248Cd
(b) 3013Al or 2713Al
(c) palladium-106 or palladium-113
(d) xenon-128 or cesium-128
26) Write balanced equations for:
(a) 23892U(α,n)24194Pu
(b) 147N(α,p)178O
(c) 5926Fe(α,β)6329Cu
36) Cobalt-60, which undergoes beta decay, has a half-life of 5.26 yr.
(a) How many beta particles are emitted in 45.5 s by a 2.44-mg sample of 60Co?
(b) What is the activity of the sample in Bq?
44) How much energy must be supplied to break a single 21Ne nucleus into separated protons and neutrons if the nucleus has a mass of 20.98846 amu? What is the nuclear binding energy for 1 mol of 21Ne?
76) The Sun radiates energy into space at the rate of 3.9 x 1026 J/s.
(a) Calculate the rate of mass loss from the Sun in kg/s.
(b) How does this mass loss arise?