Atoms and Molecules
Two or more atoms chemically bonded together
Molecule
Two or more substances that combine and form a new chemical reaction
Reactants
The Periodic Table is organized by Row and...
Column
An abbreviation for the name of an Element
Chemical/Atomic Symbol
A subatomic particle with no charge, located at the center of the Nucleus
Neutron
A positively charged subatomic particle.
Proton
A change in the state of matter (no new substance is formed)
Physical Change
A row is also called a...
Period
Elements that are good conductors of electricity and generally solid at room temperature
Metals
When two or more substances' atoms are rearranged and formed it is called...
Reaction
Anything that has mass and takes up space.
Matter
The end result of two or more substances being combined in a chemical reaction
Products
Groups/columns are arranged according to their...
Common properties/characteristics
Elements that do not share many properties with other elements and often "don't mingle with others"
Gases / Nonmetals
The Periodic Table was first developed by...
Dmitri Mendeleev
The basic unit of an Element.
Atom
Chemicals combine to cause new substances to be formed
Chemical Change
On the Periodic Table, which elements are the most reactive?
Farther left in the Groups and farther down the Rows
Silicon is an example of which type of element/group on the Periodic Table
Metalloids
Resources that are made from decayed plants and animals are called...
Fossil Fuels
The subatomic particle(s) that are not considered part of the Element's atomic weight/mass.
Electrons
Characteristics of matter that allow them to be identified and grouped/arranged accordingly
Properties
If an Element has an atomic mass of 48.071, and it's atomic number is 24, what is the number of protons?
24 (or 24.071)
Repeating rows on the Periodic Table that demonstrate patterns of how elements are arranged
Periods
Please state all three original states of matter.
Solids, Liquid, Gas