At what speed does ALL electromagnetic radiation travel?
all forms of electromagnetic radiation
alpha rays, gamma rays and x-rays
Which kind of electromagnetic radiation has the highest frequency?
radio waves, tv, FM waves
Which kind of electromagnetic radiation has the lowest 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.
forms of energy that have wavelike behavior as they travel through space
distance between corresponding points on adjacent waves
number of waves that pass a given point in a specific time period, like one second
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?
What happens when a wavelength decreases?
What happens when a wavelength increases?
What happens when frequency decreases?
What happens when frequency increases?
when photoelectrons are emitted from a metal's surface when light of a certain frequency or higher shines on the surface of that metal
Who discovered the photoelectric effect?
separates into individual colors
What happens when white light is passed through a prism?
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?
minimum amount of energy that can be gained or lost by an atom
h = 6.626 x 10^-34 Joules per second
massless paricle that carries a quantum of energy
E = hv
What is the relationship between the energy emitted and its frequency?
4.19 x 10^-13 Joules
How much energy does a photon with a frequency of 6.32 c 10^20 Hz have?
6.29 x 10^-20 Joules
How much energy does a photon with a frequency of 9.50 x 10^13 Hz have?
6.96 x 10^-18 Joules
How much energy does a photon with a frequency of 1.05 x 10^16 s^-1 have?
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
set of frequencies of electromagnetic waves that an atom's electrons absorb
lowest allowable energy state of an atom's electrons
atom with electrons that have gained energy
n; the number assigned to each orbit(energy level) of an atom
Heisenberg uncertainty principle
states that it is fundamentally impossible to know the precise location AND velocity of an electron (particle) at the same time
quantum mechanical model of the atom
an atomic model in which electrons are treated as waves
3-D region around the nucleus where electrons can be found
principal quantum number
energy level; how far the electrons are from the nucleus of an atom
energy levels contained within a principal energy level
How many orbitals are in the first principal energy level?
Which series uses ultraviolet light to create line emission spectrum?
WHich series uses infrared light to create line emission spectrum?
Which series uses visible light to create a line emission spectrum?
In the Bohr model it is the path that electrons circle the nucleus in
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?
How many total electrons in the first principal energy level?
How many total electrons in the second principal energy level?
How many total electrons in the third principal energy level?
How many total electrons in the fourth principal energy level?
How many total electrons in the fifth principal energy level?
How many total electrons in the sixth principal energy level?
How many total electrons in the seventh principal energy level?
How do you calculate the total number of electrons per energy level?
How do you calculate the total number of orbitals per energy level?
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?
What does n stand for?
2 (s & p)
How many orbitals are in the second principal energy level?
3 (s, p, d)
How many orbitals are in the third principal energy level?
4 (s, p,d f)
How many orbitals are in the fourth principal energy level?
5 (s, p, d, f, g)
How many orbitals are in the fifth` principal energy level?
What is the shape of an s orbital?
What is the shape of a p orbital?
What is the shape of a d orbital?
What is the shape of an f orbital?
How many s orbitals are there per energy level?
How many p orbitals are there per energy level?
How many d orbitals are there per energy level?
How many f orbitals are there per energy level?
How many g orbitals are there per energy level?
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?
States that each electron occipies the lowest energy orbital available
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
arrangement of electrons in an atom
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
electrons found in the outermost energy level
using element's symbol and dots to indicate number of valence electrons