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The Atom

TermDefinition
Atom The smallest particle that still can be considered an element.
Electrons Negatively charged particles that move outside the nucleus of an atom.
Nucleus The center core of an atom which contains protons and neutrons.
Protons The positively charged particles in an atom's nucleus.
Energy Level The specific amount of energy an electron has.
Neutron A small particle in the nucleus atom, with no electrical charge.
Atomic Number The number of protons in the nucleus of an atom.
Isotopes Atoms with the same number of protons and different numbers of neutrons.
Mass Number The sum of protons and neutrons in the nucleus of an atom.
Atomic Mass The average mass of all the isotopes of an element.
Periodic Table An arrangement of the elements showing the repeating pattern of their properties.
Chemical Symbol A one or two letter representation of an element.
Periods A horizontal row of elements in the periodic table.
Group Elements in the same vertical column of the periodic table; also called a family.
Created by: 15ruchserjose
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