spectroscopy

Question 1

what is electromagnetic radiation?

Answer 1

EMR = energy emitted from source (x-ray, light, etc)

Question 2

what range does visible light range from?

Answer 2

400-750 nm, if calculated wrong, it will not be around these #

Question 3

what is planck?

Answer 3

relates frequency (color) of light to the energy of photon (particle of life)

Question 4

what is a releasing photon?

Answer 4

atoms excited = jump to next orbital above

Question 5

what happens after an atom gets excited?

Answer 5

after excited, they fall back to original state and release a photon of light back out

Question 6

how are wavelengths and frequency’s related?

Answer 6

higher frequency = shorter wavelength
lower frequency = longer wavelength

Question 7

what are absorbing photons?

Answer 7

can only absorb if photon’s energy is exactly equal to the different in energy between 2 orbitals

Question 8

what’s bohr’s postulates ?

Answer 8

e-can jump between different orbitals, however it cannot exist in between
- e- absorbs = jumps up
- e- releases = falls down

Question 9

what is UV spectroscopy?

Answer 9

can excite e- and study the electronic structure of an atom

Question 10

infrared photons ?

Answer 10

are absorbed by the bonds and cause vibration of different bond types

Question 11

microwave spectroscopy?

Answer 11

use to determine bonds lengths and angles

Question 12

what are microwave photons absorbed by?

Answer 12

absorbed by molecule and cause rotations of bonds