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alpha rays, gamma rays and x-rays
Which kind of electromagnetic radiation has the highest frequency?
alpha rays, gamma rays, x-rays, ultraviolet, visible light, infrared, microwaves, radar, radio waves, television, FM waves, short waves, long waves
Name three kinds of electromagnetic radiation.
distance from the origin to the crest of a wave or from the origin to the trough of a wave
C = (lambda) (nu)
What is the relationship between frequency and wavelength for electromagnetic radiation?
when photoelectrons are emitted from a metal's surface when light of a certain frequency or higher shines on the surface of that metal
6.0 x 10^10 Hz
A form of energy has a wavelength of 5.0 x 10^-3 meters. What is the frequency of the energy?
4.42 x 10^-17 Joules
The blue color in some fireworks occurs when copper(i) chloride is heated to approximately 1500 K and emits blue light of wavelength 4.50 x 10^2 nm. How much energy does one photon of this light carry?
atomic emission spectrum
set of frequencies of the electromagnetic waves emitted by atoms of the element
Heisenberg uncertainty principle
states that it is fundamentally impossible to know the precise location AND velocity of an electron (particle) at the same time
if enough energy is gained in a photon it moves out to a higher energy level
What happens to an electron when it gains energy?
energy and distance from nucleus increase
What happens to energy as the principal quantum number increases?
He mathematically determined the probability of finding electrons in certain places around the nucleus
What did Erwin Schrodinger do for atomic theory?
it emits a photon of energy and moves to a lower energy level closer to the nucleus
What happens when an electron loses energy?
model depicts hydrogen nucleus with a single electron circling in a specific orbit
Describe the Bohr model of a hydrogen atom.
only 2-D view and used only one electron instead of 2 or more
Why couldn't Bohr's model be used for all elements?
Pauli exclusion principle
states that a maximum of two electrons can occupy a single atomic orbital, but only if the electrons have opposite spins
states that single electrons with the same spin must occupy EACH equal-energy orbital before additional electrons with opposite spins can occupy the same orbital
writing of electron configuration using circles or boxes to indicate principal energy levels and lines or arrows to indicate electrons
electron configuration notation
using superscripts to indicate the number of electrons in each orbital at each principal level
shorthand method to write electron configuration using the preceding noble gas and then any electrons after the noble gas
1s,2s,2p,3s,3p,4s,3d,4p,5s,4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p, 8s . .
What is the order for filling the orbitals, based on lowest energy level first?
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