Definitions Flashcards
1
Q
Element
A
A pure substance that consists of only 1 type of atom and cannot be broken down any simpler by physical or chemical means.
2
Q
Atom
A
The smallest particle of an element that can exist.
3
Q
Pure substance
A
a substance that consists of one type of particle only.
4
Q
Compound
A
a pure substance formed by atoms of different elements chemically bonded.
5
Q
Molecule
A
a group of atoms held together in a fixed ratio by strong chemical bonds.
6
Q
Diatomic molecule
A
a molecule formed by two atoms of the same element.
7
Q
Mixture
A
a material made of two or more substances that are not chemically bonded.
8
Q
Neutralization
A
The point where acid and base have reacted together so that neither is in excess.
