

Chapter
6 Review 1. What is the energy of a photon whos frequecy is 3.0 x 10^{12} Hz? ( The numerical calue of h is 6.6 x 10^{34} J/Hz.) 2. Calculate the average atomic mass of thailium if 29.5% of the naturally occurring atoms of thallium have a mass number of 203 and 70.5% have a mass number of 205. 3. What is the frequency of a wave that has a wavelength of 5.0 x 10^{34 } m and a velocit of 3.0 x 10^{8} m/s? 4. The nucleus of the isoptope of an element has 9 protons and 10 neutron. Determine the atomic number and the mass number of the element. 5. Naturally occurring oxygen is 99.76% oxygen16. In a 32gram sample of oxygen would be made up of oxygen17 and oxygen 18 isotopes? 

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