Periodic Table Crossword

The smallest particle that has the properties of an element
The center of an atom; made up of protons and neutrons
A positively charged subatomic particle in the nucleus of an atom
A neutral subatomic particle in the nucleus of an atom
A negatively charged subatomic particle found in the energy level of an atom
A region in an atom where there is a high probability of finding electrons
A horizontal row of elements in the periodic table
A vertical column of elements in the periodic table
The process of adding electrons to or removing electrons from an atom or group of atoms
An atom or a group of atoms that has lost or gained one or more electrons and therefore has a net electric charge
An ion with a positive charge
An ion with a negative charge
The number of protons in the nucleus of an atom
The total number of protons and neutrons in the nucleus of an atom
Symbol for atomic mass unit
The elements that are good conductors of heat and electricity
The elements that are usually poor conductors of heat and electricity
And element that has properties of both a metal and nonmetal
Any of the possible energies an electron may have in an atom
An electron in the outermost energy level of an atom