People and Discoveries
He introduced the concept of quantization.
Who is Max Planck?
The subshell in which electrons have the quantum numbers n=3, l=2
What is the 3d subshell?
This is the frequency of light that has a wavelength of 7.0 x 10-7 m.
What is 4.3 x 1014 Hz?
Objects that emit electromagnetic radiation of all wavelengths.
What is a blackbody?
This is the electron configuration for gallium.
What is [Ar] 4s² 3d10 4p¹?
Discovered that matter has wave-like properties.
Who is Louis decBroglie?
l is known as this quantum number.
What is the angular momentum quantum number?
This is the energy of a photon that has a wavelength of 12.3 nm.
What is 1.62 x 10-17 J?
Electrons being emitted from metal surface when light strikes it.
What is the photoelectric effect?
Einstein found that the kinetic energy of e- emitted from metal increases linearly with the __________ of the light.
What is frequency?
Proposed the first quantum model of the atom.
Who is Neils Bohr?
These are a possible set of quantum numbers for bromine's valence electrons.
What are...
n=4, l=0, ml = 0, ms= +1/2
n=4, l=0, ml = 0, ms= -1/2
n=4, l=1, ml = -1, ms= +1/2
n=4, l=1, ml = 0, ms= +1/2
n=4, l=1, ml = 1, ms= +1/2
n=4, l=1, ml = -1, ms= -1/2
n=4, l=1, ml = 0, ms= -1/2
This is the wavelength in nm that corresponds to an n = 5 to n = 3 transition in the Bohr hydrogen atom.
What is the emission of a 1280 nm photon?
A point in the wave function where the amplitude is zero defines.
What is a node?
This is the number of nodes that a 4s orbital has.
What is 3?
His equation described the shape and size of electron orbitals.
Who is Erwin Schrodinger?
This is the max number of electrons that can be held in n=3.
What are 18 electrons?
This is the energy required to remove the electron from a hydrogen atom in its ground state.
What is 2.178 x 10-18 J?
The energy change associated with the addition of an electron to gaseous atom.
What is electron affinity?
This element in period 3 has a very high jump in the third ionization energy.
What is magnesium?
Proposed that energy actually has mass.
Who is Einstein?
This is the maximum number of orbitals with quantum numbers n=3, l=2
What is 5 (the 3d orbitals)?
This is the wavelength of a 10.0-g bullet fired at 250 m/s.
What is 2.65 x 10-34 m?
This series of elements corresponds to the 5f orbitals.
What is the actinide series?
This is the electron configuration for an atom of copper.
What is [Ar] 4s1 3d10 ?