All About Matter
These are formed substances in a chemical reaction
What are Products?
Smallest whole-number ratio of atoms in a compound.
What is the empirical formula?
Abbreviations for elements
What are chemical Symbols?
This Scientist experiment was called the gold foil experiment.
Who is Ernest Rutherford?
Nuclear Symbol correlates to...
What are Isotopes?
Change in matter that Absorbs energy
What is endothermic?
The mass of one mole of a substance
What is molar mass?
This number represents the number of protons and electrons.
What is Atomic Number?
This scientist was accredited with the discovery of the nucleus.
Who is Ernest Rutherford?
The statement, " Atoms of a given element are exactly the same", is considered to be...
What is Dalton's Atomic Theory?
This property does not change the identity of an element or compound.
What are physical changes?
Makeup of each element in a compound.
What is Mass Percent Composition?
This represents the number of protons + neutrons.
This scientist was accredited with the discovery of subatomic particles.
Who is J.J. Thomson?
All molecular motion ceases
What is Absolute Zero?
Uniform Compositions
What are Homogeneous Mixtures?
The number of molecules in exactly one mole of a pure substance.
What is Avogadro's Number?
These subatomic particles are found on the outside of the nucleus.
What are electrons?
This scientist stated, " During Chemical Reactions atoms are rearranged, separated, or combined".
Who is John Dalton?
Substances that react during chemical reactions are known as...
What are reactants?
The amount of energy required to raise the temperature by 1 degree celsius.
What is Specific Heat?
What is a Mole?
Atoms of the same element with different mass numbers.
What are Isotopes?
This scientist discovered the motion of electrons through his Photon Emission experiment.
This substance has the same makeup and composition.
What are pure substances?