Energy levels and Light Emission Flashcards
What was BOHR’S THEORY
as you go from the inner part of the shell to the outer the energy level _______
-Electrons exist in different energy levels(orbitals)
- Electrons move up to a higher energy level, and as it falls back down due to it being unstable it produces light.
increases
as frequency increases wavelength _____
as wavelength increases frequency _____
decreases
decreases
as wavelength increase photon energy ______
decreases as the waves get larger
what colors are in the Electromagnetic spectrum
ROYGBIV
Dispersion of visible light produces the colors red (R), orange (O), yellow (Y), green (G), blue (B), and violet (V). It is because of this that visible light is sometimes referred to as ROY G. BIV.
pretty sure it is actually
: red, orange, yellow, green, blue, indigo and violet (ROYGBIV).
Where does the electron return to once it has fallen back down
ground state
what happens when atoms receive energy
electrons get excited and start jumping to higher energy levels
what state is an electron in when it jumps up to another orbit
excited state.
elements can be identified by there ____
emission spectra like you saw in the documentary
Name some of the uses emission spectra’s have in qualitative analysis
Analyzing stars
Solving crimes
testing precious gems
what is continuous spectrum
its when white light which is a mixture of diff light waves of differing lengths and colors passes through a prism to project multiple colors like a rainbow.
what is absorption spectrum
When a light is shined through a meduim and then through a prism, it causes the electrons in the atom to be energized and move up a level resulting in the use of a photon which causes the black lines in the absorption spectrum. Check with soloman
what is emission spectrum
emission spectrum is the rays of light that is produced as electrons fall down a level
how does emission spectrum prove that energy of the atom is quantized
it demonstrates how there are discrete levels in the atom which have unique energy levels. There is no in-between of levels similar to a staircase.
photon?
a packet of energy.
what are the three emission specturm series from inside to outside
LYMAN - big energy (ultraviolet)
BALMAN - Meduim energy (visible light)
PASCHEN- weak (infrared)
what jump is visible light
any jump to n=2
what jump is infared light
any jump to n=3
what jump is ultraviolet light
any jump to n=1
what are the two words to describe energy levels
concentric = within one another
converging = further you go energy levels get closer
why wont hydrogen atoms break apart with no neutrons ?
because only one single proton and thus the nucleus wont repel itself like other elements
why doesnt the electron of hydrogen just leave instead of gaining another
because the nucleus is positive and therefore the electron wont escape cuz it attracts eachother.
can emission spectrum be made from white light or white stuff
what about any other kind of light
no
yes
ways to energize atoms
heat/radiation
electricity
light
