This model shows electrons orbiting the nucleus in concentric orbits of increasing potential energy.
What is the Bohr model?
100
The amount of energy required to remove an electron from a gaseous atom or ion.
What is ionization energy?
100
The energy released when gaseous cations and anions bond together into solid ionic crystals.
What is lattice energy?
100
It is the shape of an ammonia molecule.
What is trigonal planar?
200
6.6626 x 10^-34 Js
What is Planck's constant?
200
To paraphrase, this states that the more you know about the position of a particle, the less you know about its momentum.
What is the Heisenberg uncertainty principle?
200
The change in energy experienced when an unbonded electron is added to a gaseous atom or ion.
What is electron affinity?
200
These are formed when atoms in a molecule share electrons evenly.
What are (nonpolar) covalent bonds?
200
It is the only electron domain geometry that requires two different bond angles.
What is trigonal bipyramidal?
300
It is emitted by solid bodies heated to incandescence.
What is blackbody radiation?
300
There are five of these in every energy level from principal energy level 3 and beyond.
What are d-orbitals?
300
Of the major periodic trends, it is the only one other than metallic character to increase as you move down and to the right on the periodic table.
What is atomic radius?
300
These are formed from one sigma and two pi bonds.
What are triple bonds?
300
This electron domain geometry requires sp3d2 hybridization.
What is octahedral?
400
This experiment clearly demonstrated that light comes in discreet packets called photons.
What is the photoelectric effect?
400
This states that no two electrons can have the same set of quantum states. It is the reason why electrons sharing an orbital must spin in opposite directions.
What is the Pauli exclusion principle?
400
This law, along with core electron shielding, is the best explanation for overall periodic trends.
What is Coulomb's law?
400
Elements with d-orbitals can violate this simple rule.
What is the octet rule?
400
This molecular geometry requires one lone pair and four bonding pairs.
What is seesaw or sawhorse or disphenoidal?
500
These patterns clearly demonstrated that light must also be thought of as a wave.
What are diffraction patterns or interference patterns?
500
This German sounding principle explains why energy levels must be filled from lowest to highest energy.
What is the aufbau principle?
500
This periodic property is directly responsible for bond polarity.
What is electronegativity?
500
It is the one word term that explains why the bonds in nitrite are shorter than the bonds in nitrate.
What is resonance?
500
It is most favorable molecular geometry for xenon tetrafluoride.