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Max Planck
tried to explain why the body changes colors as it’s heated, showed mathematically that radiant energy that is absorbed or emitted is directly proportional to frequency, Energy=plancks constant E=HF, he derived the word quantom
Quantom
smallest amount of energy that can be emitted in the form E.R. (electromagnetic radiation)
λ (Lambda)
wavelength
E stands for
Energy
𝜈 (nu)
frequency
how is frequency, wavelength, and energy connected
frequency is inversely proportional to wavelength (high frequency=short wavelength), energy is inversely proportional to wavelength, energy is directly proportional to frequency
Origin, crust, trough, amplitude, wavelength, frequency
Origin is the baseline of the energy, crest is the high point of the wave, trough is a low point on a wave, amplitude is the distance from the origin to crest, wavelength is the distance from crest to crest, frequency is the number of waves that pass on a given point per second
colors on the visible spectrum, what color makes up all the colors on the spectrum, and what’s the weakest and strongest color
Red, orange, yellow, green, blue, indigo, violet
White
Reds the weakest (low f long w)
violets the strongest (high f short w)
in E.R. spectrum what’s the weakest and strongest wave
weakest= radio waves (low f, long w)
strongest= gamma rays (high f, short w)
photoelectric effect
designed by albert einstein, he used to it show that light is a stream of particles, he called the stream of particles photons
6 stages of electron movement
1- ground state= lowest possible energy
2-absorb a quantom of energy
3-quantom leap=abrupt change
4-excited state-electron has more energy
5- electron goes from the excited state back to the ground state, releasing energy in the form of a photon (light or color)
6- back to ground state
orbital
region in space/ around the nucleus where this is a high probability of finding and electron, they are types of shapes, also knows as sublevels and subshells
electron configuration
tells how electrons are arranged in different orbitals around the nucleus
energy levels
a specific energy an electron is allowed to have in an atom., 7 energy levels, symbolized by the letter N=
quantom numbers
numbers that specify the properties of the atomic orbitals and their elements
principal quantom number (N)
distance from the nucleus AKA shells or energy levels
angular momentum quantom number (I)
orbital shale AKA sublevels or subshells
magnetic quantom number (Mtiny1)
orbital position with respect to the x,y,z axis
spin quantom # (Ms)
has two possible values (+1/2 -1/2) and is needed to specify 1 of 2 possible orientations of and electron in an orbital
4 De brogile things
light/ electrons have both properties of waves and particles
all moving objects have wave properties
for light E=hv=hc/w
for particles E=mc²
schrödinger model tells us
the probility of location an electron at any given point
schrödinger determined electrons are not in orbits but
are found in differnt orbitals (shapes) in certain energy levels around the nucleus
schrödinger used..
mathematical solutions of more specifically his wave equation which gives us specific wave functions ^Ht=Et
wave function (t)
does not describe the exact location of an electron but tells us the position and time of an electron
heisenberg
it’s impossible to know the exact position and momentum of an electron the better you know one the worst you know the other
which scientists where battling
Einstein Schrödinger vs Bohr Heisenberg
einstein quote
God does not play dice with the universe
what did bohr and heisenberg change
change Schrodinger‘s weight function if you take the wave function, and you square it, it tells you the probability of locating an electron at a given point
what % probability of finding an electron at any given point
90%
which two elements change their electron configuration within themselves
copper and chromium
node
where these is a 0% chance of finding an electron
orbital shapes
s-spherical
p-peanut
d-dumbbell
f-flower
what’s a line spectra
The unique arrangement of colored lines for each element, causing every element to emit its own color and have its own unique fingerprint
in schrödingers model of the electron is treated as a
wave
in Schrodinger’s theory, what is an electron cloud
A region in the nucleus where an electron is most likely to be found
how does electron density relate to the location of an electron?
The more dense the higher chance of finding an electron there
ER has both properties of
wave and particles