Chapter 3 Flashcards
_______ has an electric field component and a magnetic field component
Electromagnetic wave
_______ is the distance traveled between successive peaks in a wave
Wavelength
_____ is the number of waves passing a fixed point in one second
Frequency (v)
What does quantum mean?
The smallest quantity of energy that can be emitted in the form of electromagnetic radiation
The energy of radiation is ______ with only certain values of energy being allowed rather than an energy continuum
Quantized
Electrons that are closer to the nucleus have a ______ energy level than those further from the nucleus
Lower
Electrons can be moved from one level to higher level by
Absorbing light energy
Electrons farthest from the nucleus have a ______ energy level
Higher
Electron moving from a higher level to lower level _____
Emit light
______ energy UVA light removed electrons from molecules like water creating ____________ and other reactive oxygen species
Lower, free radicals
______ energy UVB light causes some chemical bonds to _____
Higher, break
What causes skin cancer?
The bonds broken in skin cells can cause the DNA to mutate which leads to skin cancer
UVC radiation is ____ ________ and is absorbed _______ by oxygen molecules
Highly energetic, completely
UVB is partially absorbed in the
Stratosphere
UVA is not absorbed by the atmosphere. True or false
True
