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Unformatted text preview: n = 2 7. The human eye contains a molecule called 11-cis-retinal that changes confirmation when struck with light of sufficient energy. The change in confirmation triggers a series of events that results in an electrical signal being sent to the brain. The minimum energy required to change the confirmation of 11-cis-retinal within the eye is about 164 kJ/mol. Calculate the longest wavelength visible to the human eye. 8. Find the velocity of an electron emitted by a metal whose threshold frequency is 2.25 x 10 14 s-1 when it is exposd to visible light of wavelength 5.00 x 10-7 m. 9. Give the electron configurations for the following elements: a. P b. Ge c. Zr d. I 10. Name an element in the third period (row) of the periodic table with: a. three valence electrons b. four 3p electrons c. six 3p electrons d. two 3 s electrons and no 3p electrons...
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This note was uploaded on 07/22/2008 for the course CHEM 105A taught by Professor Bau during the Summer '04 term at USC.
- Summer '04