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Comp Science

Atomic Structure Key Terms

termsdefinition
Nucleus The center of an atom, made up of protons and neutrons
Proton A positively charged subatomic particle in the nucleus of an atom
Neutron A neutral subatomic particle in the nucleus of an atom.
Electron A tiny negatively charged subatomic particle moving around outside the nucleus of an atom.
Energy Level Any of the possible energies an electron may have in an atom.
Orbital A region in an atom where there is a high probability of finding electrons.
Valence Electron An electron in the outermost energy level of an atom.
Cation An ion with a positive charge.
Anion An ion with a negative charge.
Group ( family) A vertical column of elements in the periodic table.
Created by: ltaylor29
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