1.
The smallest particle of an element that still retains the properties of the element.
2.
Electrically neutral particle inside the nucleus of an atom.
3.
Particle in the nucleus with an electric charge of 1+.
4.
Particle with an electric charge of 1-, surrounds the nucleus of an atom.
5.
Particle of matter that makes up protons and neutrons.
6.
Area around the nucleus of an atom where the atom's electrons are most likely to be found.
7.
Number of protons in an atom's nucleus.
8.
Sum of the number of protons and neutrons in an atom's nucleus.
9.
Atom of an element that has specific number of neutrons.
10.
Weighted average mass of an element's isotopes according to their natural abundance.
11.
Horizontal row in the periodic table.
12.
Organized list of all known elements that are arranged by increasing atomic number and by changes in chemical and physical properties.
13.
Vertical column in the periodic table.
14.
Uses the symbol for an element and dots representing the number of electrons in the element's outer energy level.
