Properties of Matter
What are physical and chemical properties?
The three subatomic particles
What are Protons +, Neutrons, and Electrons -
Steel melting
What is a physical change?
A label on the periodic table that informs the amount of protons and often the amount of electrons in a given atom.
What is the atomic number?
Components of matter can be separated by a physical means.
What is a mixture?
The ability to be dissolved, especially in water.
What is solubility?
The scientist who used the word atomos (uncuttable) to describe the smallest unit of matter around 400 BC.
Who is democritus?
What is a chemical change?
Periodic table rows indicate
What are energy levels
Components must be separated using a chemical reaction
What is a Pure Substance?
(Density) x (Volume)
What is mass?
This scientist discovered the proton and atomic nucleus using their gold-foil experiment
Who is Ernest Rutherford?
What is a chemical change?
Periodic table columns indicate (excluding transition metals)
What is the number of valence electrons?
Black coffee, orange juice, saltwater, and brass.
What are homogenous mixtures?
A chemical property defined by the emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei
What is radioactivity?
Electrons on the outermost energy level of an element
What are valence electrons?
To separate a homogenous solution such as saltwater
What is boiling?
The amount of neutrons for an aluminum atom- atomic # 13- with an atomic mass of 27.
What is 14?
Oxygen Gas, Chlorine, Hydrogen
The phase change graph indicates how many physical properties?
What are 4 properties: (boiling pt. condensation pt. melting pt. freezing point.)
An atom that has a different number of electrons than protons.
What is an ion?
A substance to be deposited in solid form from a solution. One of the 5 common indications of chemical changes
What is a precipitate?
The 18th column of the periodic table
What are the noble gases?
Substances that can be broken into further components by breaking bonds
What are compounds?