States that single electrons with the same spin must occupy each equal-energy orbital before additional electrons with opposite spins can occupy the same orbitals.
What is Hund's Rule?
100
This group of elements has 1 valence electron.
What is Group 1 -- the Alkali Metals?
100
Increases as you go down a group and decreases as you go across a period.
What is the trend for atomic radius?
100
Used the gold foil experiment to conclude that the atom is mostly empty space, there is a nucleus in the center of the atom, and the nucleus has a positive charge.
Who is Rutherford?
200
States that each electron occupies the lowest energy orbital available.
What is the Aufbau Principle?
200
The name of the Group 2 metals.
What is Alkaline Earth?
200
Decreases as you go down a group, and increases as you go across a period, and is defined as the energy required to remove an electron from an atom.
What is ionization energy?
200
A student determined that the density of a sample of iron is 9.00 g/ml, when the actual density of iron is 10.34 g/ml. The percent of the student's calculation was...
What is 12.96%?
300
States that a maximum of two electrons may occupy a single atomic orbital, but only if the electrons have opposite spins.
What is the Pauli Exclusion Principle?
300
We are inert, meaning we are very stable and unreactive.
What are the noble gases?
300
Decreases as you go down a group, and increases as you go across a period, and is defined as the relative ability of an element's atoms to attract electrons in a chemical bond.
What is electronegativity?
300
The actual density of an unknown metal is 9.12 g/ml. The density of the object was determined to be 3.45 g/ml. The percent error in this determination is...
What is 62.2%?
400
States that atoms lose, gain, or share electrons in order to acquire a full set of eight valence electrons (the stable electron configuration of a noble gas).
What is the octet rule?
400
All the elements in my family have a p orbital with 5 electrons.
What is the Halogen family?
400
Sodium v. chlorine -- which one has the higher ionization energy?
What is chlorine?
400
A student determined that the density of a sample of iron is 12.34 g/ml, when the actual density of iron is 10.34 g/ml. The percent error of the student's calculation was...
What is 19.3%?
500
States that it is not possible to know precisely both the velocity and the position of a particle at the same time.
What is Heisenberg's Uncertainty Principle?
500
All the elements in my family have a Lewis Dot Structure with only three dots.
What is the Boron family?
500
Francium and Fluorine.
What are the most active metal and the most active non-metal?