A new product is made using two or three reactants
What is Combination /Synthesis?
100
Created the Law of Triads in 1817
Who is Dobereiner?
100
They are found in the outermost shell of an atom and are involved in bonding
What are Valence Electrons?
100
Force of attraction between valence electrons and metal atoms
What is a Metallic Bond?
100
Founded by John Dalton who observed that elements combine in whole-number ratios to form compounds
What is the Solid Sphere Model?
200
One compound breaks down into two or more different products
What is Decomposition?
200
Created the Law of Octaves in 1864
Who is Newland?
200
A principle that says that electrons must enter orbitals at the lowest energy first
What is the Aufbau Principle?
200
Cations to Anions
What is an Ionic Bond?
200
J.J. Thomson zapped atoms with electricity and reasoned that atoms contain negatively charged particles, which he called electrons
What is the Plum Pudding Model?
300
When a cation or an anion is exchanged from a compound
What is Single Replacement?
300
Arranged the periodic table into vertical columns
Who is Mendeleev?
300
A principle that states that two electrons must have opposite spins to occupy the same orbital
What is the Pauli Exclusion Principle?
300
Partially charged cation to partially charge anion
What is a Polar Covalent Bond?
300
Neils Bohr developed a model of the atom that explained the light given off when elements are exposed to flame or electric fields
What is the Solar System Model/Bohr model?
400
Anions are exchanged between two compounds
What is Double Replacement?
400
Arranged the periodic table by atomic number not atomic mass
Who is Moseley?
400
Rule that states that one electron has to enter each orbital until all contain one electron
What is Hund's Rule?
400
Two atoms share a pair of electrons
What is a Nonpolar Covalent Bond?
400
Heisenberg suggested that the location of an electron could not be specified precisely and he stated that electrons can be said to travel in orbitals
What is the Electron Cloud Model/Quantum Mechanical Model?
500
An organic compound burns in the presence of oxygen to yield mostly carbon dioxide, water, and other products
What is Combustion?
500
Measure of an atom’s tendency to attract a pair of electrons.
What is Electronegativity?
500
The four types of orbitals S,P,D and F used to determine electron configuration and orbital notation.
What are the Sublevels?
500
Forces that hold atoms together within a molecule
What are Intramolecular Forces?
500
Ernest Rutherford completed the gold foil experiment where he shot tiny, positively charged particles called alpha particles at a piece of thin gold foil