Neutron – a subatomic particle with no charge that is part of the nucleus.Įlectron – a negatively charged subatomic particle that surrounds the nucleus and moves in a wave around it. Proton – a positively charged subatomic particle that is part of the nucleus. Subatomic particles – the smaller particles that make up an atom: neutrons, protons, and electrons. Periodic Table of Elements – a table of the chemical elements arranged in order of atomic number.Ītomic Number – the number of protons in an atom of an element.Ītom – the basic unit of a chemical element.Įlement – a substance made up of only one kind of atom. Related: Scientific method worksheet Periodic Table Vocabulary So the periodic table is a shared reference that helps all scientists as they explore the universe around us.ĭownload your printable periodic table and use it at home or in the classroom: Click to download Periodic Table Printables Scientists organized the periodic table of elements by atomic number because it is a part of each element that NEVER changes.
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