A - Atoms and Line Spectra

Question 1

is white light a continuous or discontinuous spectra?

Answer 1

continuous

Question 2

what does a continuous spectrum look like

Answer 2

a rainbow

Question 3

what does a discontinuous spectrum look like

Answer 3

discrete lines

Question 4

how do discharge tubes work?

Answer 4

electric current excites atoms

as excited atoms come back down to lower state, it emits photons

Question 5

is emission going from higher to lower, or from lower to higher?

Answer 5

higher to lower

Question 6

what is avagadros number

Answer 6

¯_(ツ)_/¯

Question 7

what does λ stand for? what unit?

Answer 7

wavelength, in metres

Question 8

what does v stand for? what unit?

Answer 8

cycles per second, in Hz, or s-1

Question 9

what does Z stand for?

Answer 9

nuclear charge, the atomic number, basically

Question 10

lyman series

Answer 10

transitions from higher levels to n=1

Question 11

what does m=3 represent?

Answer 11

m indicates the initial level. the initial level was 3

Question 12

balmer series

Answer 12

transitions from higher levels to n=2

Question 13

paschen series

Answer 13

transitions from higher levels to n=3

Question 14

what does A represent?

Answer 14

the amount of light absorbed

Question 15

what does larger A mean?

Answer 15

more incident light has been absorbed

Question 16

how to calculate speed of light?

Answer 16

c = λv

Question 17

do more energetic photons have longer or shorter wavelengths?

Answer 17

shorter

Question 18

does UV light have higher or lower wavelength than visible?

Answer 18

lower

Question 19

does infared light have higher or lower wavelength than visible?

Answer 19

higher

Question 20

range of visible light

Answer 20

750 - 400

Question 21

ionization energy

Answer 21

energy needed to remove one electron, atom becomes more positive

Question 22

what is the n value (n final) for ionization?

Answer 22

infinity