Vocabulary
Can not be divided / "Indivisible"
What is atomus.
Tightly packed particles, vibrating about a fixed position. Have a definite shape & volume.
What is a Solid.
Pure substance composed of two or more different elements joined by chemical bonds made of elements in a specific ratio that is always the same.
What is a Compound.
Discovered Electrons and called them "Negative Corpsucles" and created the Cathode-Ray Experiment
Who is J.J. Thompson.
Atomic Symbol is Cu.
What is Copper.
Pure substance that cannot be separated into simpler substances by physical and chemical means.
What are Elements.
Particles are very far apart and move freely with an indefinite shape and volume.
What is a Gas.
A sample of matter that has definite chemical and physical properties.
What is a Pure Substance.
Created the theory of electron clouds surrounding the nucleus and that elctrons to not travel in definite paths.
Who is Schrodinger & Heisenberg.
Atomic weight is 72.61.
What is Germnanium.
A way of physically telling one form of matter from another. Metals that enables them to be hammered, rolled out, shaped without breaking.
What is malleability.
Tightly packed particles, but are far enought apart to slide over one another. Have indefinite shape and definite volume.
What are Liquids.
Part of a solution that is being dissolved, usually the lesser amount.
What is a Solute.
This person disagreed with another scientist and said that atoms can NOT be divided.
Who is Dalton.
Atomic Symbol for Krypton.
What is Kr.
Substances that are not distributed evenly through the mixture.
What is a Heterogenous Mixture.
Made up of particles which are in continual random motion.
What is the Kinetic Theory of Matter.
A combination of two or more pure substances that are not chemically combined.
What is a Mixture.
Sent positively charged particles through a thin sheet of gold foil to test the structure of an atom.
Who is Rutherford.
Atomic number for Potassium.
What is 19.
Substances that are distributed evenly through the mixture.
What is a Homogenous Mixture.
An ionized gas with indefinite shape & volume.
What is Plasma.
The part of the solution that dissolves the solute.
What is a Solvent.
Formulated the Periodic Law, created a farsighted version of the Periodic Table of Elements.
Who is Dmitri Mendeleev.
Atomic Weight for Xenon.
What is 131.29