Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
33 Cards in this Set
- Front
- Back
|
the wave model of light was not able to explain
|
the photoelectric effect
|
|
|
in a wave motion the product of frequency and wavelength is equal to
|
the speed of the wave
|
|
|
the common characteristic shown by X rays visible light infrared radiation and radio wavesis all have the same
|
speed
|
|
|
the drop of an electron from a high enrgy level to the ground state in a hydroven atom would be most closely associated with
|
high frequency radiation
|
|
|
the change of an atom from excited state to ground state always involves
|
emission of electromagnetic radiation
|
|
|
an orbital may be defiend as
|
a higly probable location of an electron within the atom
|
|
|
the quantum model of the atom locates the electron
|
within a region of high probability
|
|
|
the size and shape of an electron clous is most closely related to the electrons
|
energy
|
|
|
the quantum of electromagneitc energy is called a
|
photon
|
|
|
the spectral lines of hydroven that occur in the ultraviolet region of the electromagnetic spectrum are called the
|
Lyman series
|
|
|
an optical instrument that separates lgith eneterng it into component wavelengths is a
|
prism, spectroscope
|
|
|
the lowest total enrgy of the electron in a hydrogen atom occurs when the electron is in teh state called the
|
ground state
|
|
|
in its ground state, an atom has its hightest possible energy
|
false
|
|
|
an atom is in an excited state when it has a higher potentioal energy that it has in its ground state
|
true
|
|
|
in bohrs model of the atoms the orbit is the path taken by the atom's protons around the nucleus
|
false
|
|
|
quatnum theory is a scientific explatnation for the fact that hydrogen atoms give offf only certain frequencies of light
|
true
|
|
|
what do emission spectra show
|
the frequencies at which light is given off from excited electrons
|
|
|
in some ways light behaves as an electromagnetic wave. this means that as the wavelenght of light increases its frequency
|
decreases
|
|
|
planck proposed the existence of quanta when he observed that
|
a hot object does not emit electromagnetic energy continuously
|
|
|
electromagnetic radiation is a kind of ___ that behaves like an _____ as it travels through space
|
energy, wave
|
|
|
_______ is one type of electromagnetic radiation. other examples include X rays, radio waves, and microwaves
|
Light
|
|
|
all waves can be characterized by their wavelength, amplitude, frequency, and _______.
|
speed
|
|
|
the shortest distance between equivalent points on a continuous wave is calle d a ______--
|
wavelenth
|
|
|
the height of a wave from the origion to a cres or from origion to trough is
|
amplitude
|
|
|
______ is the number of waves that pass a given point in one second
|
frequency
|
|
|
the SI unit for frequency is the _________- - one wave per second
|
hertz
|
|
|
the lowest allowable enrgy state of an atom is called its
|
ground state
|
|
|
bohrs model of the atom predicted the _____ of the lines in hydrogen's atomic emission spectrum
|
frequencies
|
|
|
according to Bohr's atomic model, the smaller an electron's orbit the _____ the atom's energy level
|
lower
|
|
|
according to bohr, the larger an e-'s orbit the ______ the atoms energy level
|
highter
|
|
|
bohr proposed that when energy is added to a hydroven atom, its _________ moves to a higher energy orbit
|
electron
|
|
|
according to borhs atomic model , the hydroven atom emits a photon correspoind tin to the difference between the ______ _____ associated with the two orbits it transitions between
|
energy levels
|
|
|
bohr's atomic model failed to explain the _________ of elements other than hydrogen
|
atomic emission spectrum
|
