CHEM 121 Chapter : Chem 121 Chap 4 Notes

• School: UBC
• Department: Chemistry
• Course: CHEM 121
• Professor: Laura Stirchak

Document Summary

Diffraction : bending of waves by an obstacle interference : property of any kind of wave. Electrons can interfere constructively and destructively (cid:8869) behaves as waves. : velocity ( mis) m : mass of particle 1kg) : wavelength (in meters) p : momentum of particle (kg. F) hi 6. 626 10-34 js particles don"t exhibit wave-like behaviour (cid:8869) due to small magnitude of planck"s constant. Wave - like behaviour only detectable when momentum is very small p=mv. Waves transport energy not matter transverse wave characteristics speed of wave travel. = velocity /mis) f = frequency 1st or hz) = fix de broglie : waves can be defined as sin mathematical equation. Wave bound between 2 endpoints / boundaries so it doesn"t extend to infinity sin cx) wave 11=0 to =l outside of range amplitude = zero. = n can go up to infinity.