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What does the spin quantum number indicate

direction of spin

A problem with the planetary or solar system model of the atom was that if electrons really orbited around the nucleus, the charge in acceleration should cause ____________ radiation to be given off by the electron which would eventually cause the electron to lose its charge

electromagnetic

The planetary model of an atom has _______ orbiting the nucleus

electrons

A spectroscope can display a(n) ____________ spectrum from a glowing element

emission

Each element has its own characteristic ____ of light

emissions

By bombarding a sample of gold foil with positively charged particles, scientists were able to show that most of the atom was made up of __

empty space

If a blackbody is heated to a high temperature, it will give off _

energy

What does the principal quantum number indicate

energy shell

Wave motion is the reason that electrons inhabit specific __

energy shells

The quantum model stated that electrons were in orbits an exact distance from the nucleus defined by the ______ of the electron

energy state

Each shell is made up with electrons traveling in different frequencies

false

When electrons are within 10 Hz of exactly fitting together, an energy shell can be formed

false

Different amounts of energy produce light of different ______

frequencies

The maximum rate of release of electrons is affected by the ___________ of the light

frequency

The higher the energy level, the _________ the distance from the nucleus

greater

he process of light being emitted by a material from an element as it becomes hot is called ______

incandescence

As the temperature of a blackbody rises, the frequency of the energy emitted will ____

increase

The release of electrons from metal illuminated by light is ____

instantaneous

A special device can produce a crisp picture of an element's emission spectrum by separating the light into clearly defined ___

lines

The quantum model failed to explain the behaviors and structures of atoms with ___________ electrons

multiple

The "raising pudding" model of the atom had a positively charged "sea" of pudding with _______ charged electrons floating around it, like raisins

negatively

The nucleus of an atom contains certain number of protons and a certain number of ---

neutrons

As energy is added to the atom, the electrons momentarily shift to the _________________ energy level

next higher

What does the magnetic quantum number indicate

orbital's orientation

The only way the the photoelectric effect can be satisfactorily explained is by the __________ theory of light

particle

Planck's theoretical explanation of the relation between the amounts of energy added and the frequency of radiation emitted required that light be emitted as ____

particles

The phenomenon of electrons being emitted when light strikes a metal surface is called the ____

photoelectric effect

As the energy level of an atom shifts back from an excited state to a normal state, a(n) _______ is released

photon

Very quickly, the energy level shifts back to the normal state and a(n) __________ is released

photon

he energy the atom gives off when its electrons become de-excited is called --

photon

Light arrives at its destination as __

photons

Light consists of ____ that travel as waves

photons

The one question that the wave theory did not have a satisfactory answer for was concerning how light is _____

produced

The frequency of light is _______ to the amount of energy that produces it

proportional

The _____ of the light will shift toward the lighter colors as the temperature increases

proportions

Planck called the particles of light ______

quanta

The word Planck used to describe the amount of energy in a particle is ___

quantum

The release of electrons is---- with brighter light and -----with dimmer light

quicker slower

Studying the _______ pattern given off by a combination of elements (a compound) will allow us to identify the elements that comprise the compound

refraction

What does the angular momentum quantum number indicate

shape of the orbital

The lines in an emission spectrum are actually images of the ________ in the spectroscope

slit

A _____________ is a special combination of lenses and prisms and gratings

spectroscope

According to classical physics, adding more energy to a blackbody should take energy emission though the whole _

spectrum

Studying the emission ___________ of an element will allow us to identify it

spectrum

Each energy shell of an electron is a(n) ________ of vibrations of the electron

standing wave

White incandescent light has an almost _______ spectrum

continuous

An absorption spectrum shows up as ______ lines, instead of the bright lines of an emission spectrum

dark

Electrons in different levels will orbit at ________ distances from the nucleus

different

Which scientist suggested that a wave equation could determine the probability of an electron occupying any particular shell?

Erwin Schrödinger

The theoretical work performed by _________, led to experimentation that proved that light consisted of particles

Albert Einstein

The theoretical work performed by this physicist led to experimentation that proved that light consisted of particles

Albert Einstein

______ was one of the first scientists to accept Louis de Broglie's theory

Albert Einstein

What happens as a blackbody is raised to higher and higher temperatures

As temperatures reach a level where it should get to the UV range, the emissions drop Once temperatures are raised emissions of the radiation begin increasing in frequency

The first model of the atom that explained its structure in quantum terms was proposed by __

Bohr

He believed strongly that light consisted of waves

Christian Huygens

What describes the contribution of Arnold Sommerfield to the development of quantum physics? Check the 5 that appl

He worked with the spectral lines given off by the emission of light from given chemicals He found justifications for every detail of the spectral lines except for the intensity of some of the emission line Sommerfeld was able to explain that electrons did not orbit the nucleus of an atom in exactly the same manner as a planet orbited the sun He assigned numbers to define the properties of the atomic orbitals and of the electrons themselves Sommerfeld worked out the shapes and probabilities of location and speed of electrons in the quantum atom and described the characteristics of the orbitals

He believed that light consisted of a stream of particles even though his experiments with lenses, mirrors and glass plates suggested to him that light traveled in waves

Isaac Newton

Which scientist suggested that particles of matter in motion should have wave properties

Louis de Broglie

His study of blackbody emissions and the ultraviolet catastrophe led to the development of two constants, one of which bears his name

Max Planck

The energy of a photon is found by multiplying the frequency of the light wave by ____

Planck's constant

The uncertainty in position of an electron is related to _------

Planck's constant

The spectral pattern will be _____________ regardless of the temperature of the element

consistent

_________ light does not easily create a photoelectric effect

Red

In 1911, a team of scientists led by _________ showed that the raisin pudding model of the atom was wrong

Rutherford

________ proposed the planetary model of the atom

Rutherford

blackbody

an object that absorbs all incoming light without reflecting any of it

What describes the contribution of Samuel Goudsmit and George Uhlenbeck to the development of quantum physics

They came to the conclusion that a fourth quantum number, the electron spin was need to completely describe the characteristics of an electron

What do the quantum numbers, taken together, indicate about the electron

They give an accurate and detailed picture of the configuration of each electron in the atom The quantum numbers are used in descriptions of the structure of an atom.

His double slit experiment seemed to settle the question about the nature of light—light definitely consisted of waves

Thomas Young

The electron was discovered by _______ in 1897

Thomson

________ light creates a photoelectric effect

Ultraviolet

The dual nature of light is really two ____ or ____ of one unified reality

aspects descriptions

The quantum model failed to explain why ________ could be obtained by electrons

certain orbits

The probabilities on an electron's position are best visualized with an electron ________ diagram

cloud

Niels Bohr, one of the most important scientists in the history of atomic research, called this relationship between these two aspects ____

complementarity

Which scientist's uncertainty principle stated that it was impossible to be certain about the precise position and momentum of an electron at any one instant

Werner Heisenberg

Which scientist expressed that physics at the time was very muddled and complicated

Wolfgang Pauli

Does light consist of electromagnetic waves or streams of particles

Yes, the nature of light has a wave-particle duality

hen gas is put in a container and a white incandescent light shines through it, the gas ______ certain wavelengths of light

absorbs

The ---- frequencies of an element are exactly the same as the---- frequencies of that element

absorption emission

According to classical physics an electron is in a constant state of --

acceleration

The wave theory of light would predict that electrons would be emitted only after time had elapsed, following the ______ of energy

accumulation

An atom in its normal state has the same number of protons as electrons

true

An electron's energy never diminishes in its orbit

true

Charges undergoing acceleration produce electromagnetic radiation.

true

Electrons of a particular energy level orbit the nucleus at a particular radius or distance from the nucleus

true

Electrons oscillations are performed at exact wavelengths all the times

true

Scientist call the failure of a blackbody to emit high levels of radiation in the ultraviolet light range the ___

ultraviolet catastrophe

According to classical physics, at high enough temperatures, a high percentage of blackbody radiation should be in the form of ____

ultraviolet light

Most properties of light such as reflection, refraction, diffraction and diffusion could be explained by the ________ theory of light

wave

Light exhibits patterns attributable to __

waves