Atoms, Ions, and Compounds Post Test Flashcards
1
Q
Element
A
A substance made of one type of atom only
2
Q
Atom
A
The smallest particle of an element that can exist.
3
Q
Ion
A
An atom that has gained or lost electron/s, will have a net charge
4
Q
Molecule
A
2 or more atoms chemically bonded together
5
Q
Compound
A
2 or more ions chemically bonded together
6
Q
Electrons
A
A negative charged sub-atomic particle
7
Q
Neutrons
A
A neutral sub-atomic particle
8
Q
Protons
A
A positively charged sub-atomic particle
9
Q
Nucleus
A
The middle of an atom (or ion), contains protons and neutrons
10
Q
Energy Level
A
Areas around a nucleus where electrons are found
11
Q
Atomic Number
A
The number of protons in the nucleus of an atom
12
Q
Mass Number
A
The number of Protons + Neutrons in the nucleus of an atom
