CHEM-6 Midterm: CHEM 6 Dartmouth Exam2A Exam
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No other books or papers are to be used. The awarding of full credit will require that numerical answers be supported by a clear presentation of the steps used. A periodic table is appended to the end of the exam. 1 = 10-8cm melectron = 9. 11 x 10-31kg h = 6. 62 x 10-34j(cid:127)s ao= 0. 530 . Question 1 (a) (10 points) all of our discussions involving the photo electron effect used metals as examples, but the effect may also be observed in gases. Broglie wavelength of these electrons? (c) (5 points) assume that we wish to measure the position of an electron in atom to an uncertainty of 0. 05 . Question 3 (a) (4 points) what is the significance of a node? (b) (8 points) the h atom 2s wavefunction is given by. Show that the probability of finding a 2s electron within 0. 1 of the nucleus is greater than 10-5.
