General
These are the three states of Matter.
SOLID, LIQUID AND GAS
Anything that has MASS and takes up SPACE.
MATTER
This CHANGE affects the type of molecules or atoms in a substance.
CHEMICAL CHANGE
Positive subatomic particles found in the Nucleus
Protons
This element has 79 Protons
Au- GOLD
A SUBSTANCE that contains DIFFERENT compounds or elements
MIXTURE
Particles that are contained in the ATOM. (Group Name)
Subatomic Particles
This CHANGE in which the Atoms or Molecules in a substance stay the same.
Physical Change
Neutral subatomic particles found in the nucleus.
Neutrons
This element is a rare metal and has an Atomic Mass around 20.
Ne - Neon
The point when SOLID elements gains heat and becomes a liquid.
MELTING POINT (ICE)
The opposite is when heat is removed and a liquid becomes a solid = BOILING or FREEZING POINT
Two or more ATOMS linked together to make a substance with unique properties.
MOLECULE
A rusted nail (iron) is an example of this change.
Negatively Charged ions
Anion
This is represented by the number that is ABOVE the Element's symbol.
Atomic Number or Number of Protons
The identifying properties are: slippery to the touch, receive hydrogen ions, and taste chalky or bitter.
BASES
Atoms must have the same number of these to be considered an ELEMENT
PROTONS
A substance that contains different compounds an/or elements.
MIXTURE
Cation
POSITIVE Atom.
This Scientist created the Periotic Table and organized Elements into Periods and Groups using their Atomic Number.
Mendeleev
The outer most level of electrons.
Valence Electrons
A bond where two atoms share a pair of electrons.
COVALENT
Lemonade
PHYSICAL CHANGE - lemon juice, sugar and water dissolved in water. (Molecules stay the same)
The first energy level of an Atom holds a maximum of _____ electrons
2
This Scientist came up with one of the early models of the Atom and coined the term "Nucleus".
Neils Bohr