Atomic Vocabulary Crossword

The smallest unit of a chemical element that has all of the properties of that element; basic building block of matter
The poitively charged mass within the atom, composed of neutrons and protons, and possessing most of the mass but occupying only a small fraction of the volume of an atom
Positively charged subatomic particle with significant mass located within the nucleus of an atom
Neutral subatomic particle with significant mass located within the nucleus of an atom
Negatively charged subatomic particle with insignificant mass located outside of the nucleus of an atom
An outer shell electron that is associated with the formation of chemical bonds
a measure of the tendency of an atom to attract a bonding pair of electrons
a property of characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed
The number of protons on the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table
The mass of an atom of a chemical element expressed in atomic mass units; approximately equivalent to the number of protons and neutrons in the atom or to the average number allowing for the relative abundaces of different isotopes
Atoms of the same element that contains equal numbers of protons but different numbers of neutrons in their nuclei