Chapter 4

examples of electromagnetic radiation

involve energy that travels as waves through space

highest point on the wave

distance from a peak in one wave to the peak in the next wave

number of waves that pass a certain point in one second

distance in meters a wave travels in one second

velocity of radiation is given as

travels at the speed of light in a vacuum

wavelengths of radiation are expressed in

frequencies are measured in

represents one wave per second

arrangement of all the various forms of electromagnetic radiation in order of  decreasing wavelengths or increasing frequencies

have shorter wavelengths and higher frequencies than radio waves

responsible for the heat we feel from sunlight and the heat of infrared lamps used to warm food in restaurants

with wave lengths from 700 to 400nm is the only light our eyes can detect

longest wavelength at 700 nm

 wavelength of 600 nm

wavelength of 500 nm

wavelength of 400 nm and is the shortest wavelength  of visible light

has shorter wavelengths and higher frequencies than violet light of the visible range

can cause sunburn

has shorter wavelengths than ultraviolet light

has some of the highest frequencies

produced by radioactive atoms and in nuclear processes in the sun and stars

dangerous because they kill cells in the body and are used in treatments of tumors and cancers

when atoms of elemets are heated

when the light emitted from heated elements is passed through a prism

consists of lines of different colors separted by dark areas

when white light from the sun or a light bulb is passed through a prism

example of a contiunous spectrum

having only certain wavelengths of light produced when an element is heated gives each element

stream of small particles of energy

the energy of a photon is related to

the energy of an electron can never

in an atom, each electron has its

energy level are assigned values called

electrons in the lower energy levels

electrons in the higher energy levels are

An electron is raised to a higher energy level by?

when does an electron lose energy?

if the electromagnetic radiation emitted has a wavelength in the visible range

when an electron falls from higher energy levels to the first energy level

when electrns fall from higher energy levels to the second level

when electrons fall from higher energy levels to the third level

each energy level consists of one or more

contains electron with identical energy

sublevels are indentified by the letters

equal to the principle quantum number

withis each energy level the S sublevel has the

if there are additional sublevels after S then

s sublevel

s sublevel holds

p sublevel holds

d sublevel holds

f sublevel hold a max of

a region in an atom where there is the highest probability of finding an electron

represents the three dimensional regions in which electrons have the highest probability of being found

states that an orbital can hold up to 2 electron but no more

in an s orbital electrons are most likely found

s orbitals can hold

increase in the size of the s orbitals

p sublevel has

an s level has

each of the 3 p orbitals has

each p orbital can hold up to

at highter energy levels  the shape of p orbitals

d sublevel consits of

f sublevel has