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Capter 4 Vocab

Physical Science Vocab

TermDefinition
Nucleus Is the dense, positively charge mass located n the center of the atom.
Proton Is a positively charged subatomic particle that is found in the nucleus of an atom.
Electron Is negatively charged subatomic particle that is found in the space outside the nucleus.
Neutron Is a neutral subatomic particle that is found in the nucleus of an atom.
Atomic Number The number of protons in an atom of that element.
Mass Number The sum of the protons and neutrons in the nucleus of that atom.
Isotopes Atoms of the same element that have different numbers of neutrons and different mass numbers.
Energy Levels The possible energies that electrons in an atom.
Electron Cloud Is a visual model of the most likely locations for electrons in an atom.
Orbital Is a region of space around the nucleus where an electron is likely to be found.
Electron Configuration Is the arrangement of electrons in the orbitals of an atom.
Ground State When all the electrons in an atom have the lowest possible energies
Created by: hayden.murphy
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