CHEM 101 Study Guide - Midterm Guide: Electron Configuration, Joule, Aufbau Principle
Document Summary
Wavelength- the distance between successive wave peaks. Frequency- the number of wave peaks that pass a given point per unit time. Amplitude- the height of the wave maximum from the center. What we perceive as different kinds of em energy are waves with different wavelengths and frequencies. Wavelength x frequency = speed of light (3. 00 x 10^8 m/s: wavelength in meters (m, frequency in /s (1 /s = 1hz) Example: what is the wavelength associated with a frequency of 106. 5 mhz: 106. 5 mhz= 106. 5 x 10^6 hz. Example: ?= v (frequency) of red light with a wavelength of 700nm (1nm= 1 x 10^-9 m: v= 4. 29 x 10^14 hz. = energy associated with a photon of light with a wavelength = 700 nm red. E=hv: e= (6. 626 x 10^-34 j s)(4. 29 x 10^14 /s) Note: you could also be asked in j/mol of photons or kj/mol of phtons.
