Periodic Table
The creator of the first Periodic Table.
Dmitri Mendeleev
A single type of atom.
Element
When two elements combine into one compound. A + B > AB
Synthesis
Smallest particle into which an element can be divided and still be the same substance.
Atom
If there is balanced force on an object...
It does not move in any particular direction.
Vertical column of elements (up & down).
Group
A chemical combination of two or more different elements.
When a compound is split into two elements. AB > A + B
Decomposition
Means indivisible or uncuttable.
Atomos
If there is unbalanced forces...
Object will move in a certain direction.
Horizontal row of elements.
Period
A chemically pure substance made of two or more atoms bonded together.
Molecule
When one element is replaced. AB + C > AC + B
Single Replacement
The negatively charged particles found in all atoms.
Electrons
An object at rest will stay at rest unless acted on by an unbalanced force.
Newton’s First Law of Motion
The three types of elements are
Metals, Nonmetals, and Metalloids.
Is made of two or more chemically pure substances that physically combine.
Mixture
When two elements are replaced. AB + CD > AC + BD
Double replacement
The subatomic particle found in the nucleus that has no charge.
Neutrons
An object’s tendency to resist a change in motion.
Inertia
What family/group are the most unreactive elements on the periodic table?
Noble gases
What substance can be physically seperated?
A mixture
C6H14 + O2 > CO2 + H2O
Combustion
The positively charged particles of the nucleus.
Protons
The greater the object’s mass...
The greater its inertia and the larger the force needed to overcome inertia.