Atomic Models
Atomic Structure
Atomic Mass
Atomic Orbitals
Electron Arrangement
100
Smallest particle of an element that retains its identity in a chemical reaction.
What is an atom?
100
Positively charged subatomic particle.
What is a proton?
100
Same number of protons but different number of neutrons.
What is an isotope?
100
Region of space where electrons may be found.
What is an atomic orbital?
100
Electrons occupy orbital of lowest energy first.
What is Aufbau?
200
First to suggest the existence of atoms.
Who is Democritus?
200
Negatively charged subatomic particle.
What is an electron?
200
A unit of mass equal to 1/12th of the mass of carbon-12 atom.
What is an amu?
200
Number of quantum numbers.
What is 4?
200
Atomic orbital may hold at most 2 electrons.
What is Pauli Exclusion Principle?
300
Believed electrons orbit outside the nucleus.
Who is Bohr?
300
Located in the nucleus of an atom.
What are protons and neutrons?
300
Using a Periodic Table, isotope of carbon that contains 7 neutrons.
What is carbon-13?
300
Quantum Number that describes energy of electron (provide the number).
What is 1st?
300
Electrons fill each orbital before pairing.
What is Hund's Rule?
400
Transformed Democritus’ ideas on atoms into a scientific theory.
Who is Dalton?
400
Two subatomic particles with equal mass.
What are protons and neutrons?
400
Using a Periodic Table, isotope of aluminum that contains 14 neutrons?
What is aluminum-27?
400
Quantum Number describes shape of orbital (provide the number).
What is 2nd?
400
Electron configuration for sodium starting with 1s.
What is 1s2 2s2 2p6 3s1?
500
Conducted the Gold Foil experiment.
Who is Rutherford?
500
Number of protons in the nucleus of the atom.
What is atomic number?
500
Using a Periodic Table, isotope of chromium that contains 26 neutrons.
What is chromium-50?
500
Sublevel that has 3 orbitals (provide the letter).
What is p?
500
Electron configuration for tungsten (starting with 1s)?
What is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d4?
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