Tut1_bch1049_07_1a - BCH1049 Concepts Tutorial One (Week 2)...

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1 BCH1049 Tutorial One (Week 2) Concepts 1. A charged particle is caused to move between two electrically charged plates: (a) What is the sign of the electrical charge on the particle? (b) Why does the path of the charged particle bend? (c) As the charge on the plates is increased, would you expect the bending to increase, decrease, or stay the same? (d) If the mass of the particle is increased while the speed of the particle remains the same, would you expect the bending to increase, decrease, or stay the same? 2. (a) Note the similarities and differences between a mass spectrometer and Thomson’s cathode-ray experiment. (b) In order to measure the mass spectrum of an atom, it must initially lose or gain one or more electrons. Why? (c) A magnet is a critical component of the mass spectrometer. What is its purpose? 3. Four of the boxes in the following periodic table are colored. Which of these are metals and which are non- metals? Identify the alkaline earth metal, transition metal, chalcogen and noble gas.
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This note was uploaded on 01/11/2011 for the course BCH 1049 taught by Professor Michaelcwchan during the Spring '06 term at City University of Hong Kong.

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Tut1_bch1049_07_1a - BCH1049 Concepts Tutorial One (Week 2)...

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