All About Matter
what is an atom?
Represents the number of Protons + Neutrons
What is the atomic mass?
This scientist prosed: Chemical reactions involve the rearrangement, separation, or combination of atoms.
Who is Dalton?
Smallest whole number ratio of atoms ina compound
What is the Empirical Formula?
Who is Democritus?
What is a homogeneous mixture?
Represents the number of protons and electrons
What is the atomic number?
This scientist was accredited with the discovery of the nucleus in the atom. (hint: gold)
Who is Ernest Rutherford?
Makeup of each element in a compound
What is Mass Percent Composition?
When is 1911?
Substances that react in a chemical reaction
What is a reactant?
Great semiconductors of heat and electricity
What is a metalloid?
This scientist proposed: Atoms can neither be created or destroyed in a chemical reaction
Who is Dalton?
The mass of one mole of a pure substance
What is the molar mass?
What unit is heat measured in?
What is a joule?
Transforms into something brand new
What is a chemical change?
This format is called: Boron-11
What is hyphen notation?
This scientist was accredited with the planetary model of the atom
Who is Neils Bohr?
The amount of substance that contains as many particles as there are atoms
What is a mole?
What is the second step to solving the Empirical Formula?
What is dividing each mole by the smallest mole?
The amount of energy it takes to raise the temperature
What is specific heat?
Atoms of the same element with different mass numbers
What is an isotope?
Who is J.J. Thomson?
This value represents the number of particles in exactly one mole of a pure substance
What is Avogadro's Number?
How would you classify sodium?
What is metal?