Post on 30-Dec-2015
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[He]2s22p1
What is boron?
[Ar]4s2
What is calcium?
[Ar]4s23d8
What is nickel?
[Ne]3s23p4
What is sulfur?
[Ar]4s13d10
What is copper?
It has 6 members in each period.
What is the p group?
It has 14 members in each period.
What is the f block?
This block represents the spherical orbital.
What is the s block?
The d block
What is the block that contains the transition elements?
The s and p blocks
What are the representative elements?
Stated that it is impossible to determine the velocity and the position of a moving charge
Who is Werner Heisenberg?
Wrote mathematical equations to describe electron positions inside the electron cloud
Who is Schrodinger?
Observed and explained the photoelectric effect
Who is Albert Einstein?
Determined an equation to find the wavelength of visible objects traveling less than the speed of light
Who is Louis deBroglie?
Stated the relationship between energy of a photon and its frequency
Who is Max Planck?
States that electrons will fill the lower energy levels first
What is the Aufbau principle?
States that electrons will enter orbitals so that each orbital has one electron before pairing begins
What is Hund’s rule?
States that no two electrons can have the same set of quantum numbers so electrons enter orbitals having opposite spins.
What is the Pauli exclusion principle?
The position and velocity of a moving charge cannot be simultaneously known.
What is the Heisenberg uncertainty principle?
The photoelectric effect and the bright line spectrum
What are the two behaviors that convince us that light has a particle nature?
The lowest energy state for an electron
What the ground state?
Horizontal rows
What are periods?
Helium, neon, argon, krypton, xenon, radon
What are the noble gases?
Diagram using arrows to represent electrons in energy levels.
What is an orbital diagram?
The way of writing electron distribution using letters and numbers
What is the electron configuration?
The shorthand way of writing electron configuration using noble gas symbols
What is core or noble gas configuration?
ns2np6
What is the valence shell configurationfor group 18?
The name for electrons in the outermost energy level of an atom.
What is valence electrons?
E = hf
What is Planck’s equation?
When electrons are not in their lowest energy state
What is the excited state?