Tutorial 3a the electronic structure of atoms and periodicity (pass year) PDF

Title	Tutorial 3a the electronic structure of atoms and periodicity (pass year)
Course	Chemistry
Institution	Universiti Teknologi MARA
Pages	1
File Size	62.5 KB
File Type	PDF
Total Downloads	17
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the electronic structure of atoms and periodicity (pass year)...

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CHM131: GENERAL CHEMISTRY TUTORIAL 3(a): THE ELECTRONIC STRUCTURE OF ATOMS AND PERIODICITY

1. a) Find the wavelength (in nanometers) of light having frequency of 8.6 x 1013 Hz? b) Find the frequency (in Hz) of light having wavelength of 566 nm? 2. A photon has a wavelength of 624 nm. Calculate the energy of the photon in joules. 3. The blue color of sky results from the scattering of sunlight by air molecules. The blue light has a frequency of about 7.5 x 1014 Hz. a) Calculate the wavelength, in nanometers. b) Calculate the energy, in joules of a single photon. 4. Calculate the wavelength (in nanometer) of photon emitted by a hydrogen atom when its electron drops from n=5 state to n=3 state. 5. Calculate the frequency (in Hz) of emitted photon when an electron drops from n=4 state to n=2 state in a hydrogen atom.

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