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Vocab

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1AtomThe smallest unit of Matter that keeps the identity of the substance
2ProtonSubatomic particle with a positive charge located in the nucleus of the atom. The number of protons gives the atom its identity
3NeutronSubatomic particle with no charge, the same mass as a proton, and located in the nucleus of the atom
4ElectronSub atomic particle with a negative charge and located outside the nucleus
5Atomic numberThe number of protons in the nucleus of an atom.this number identifies the atom
6Atomic massThe number of protons and neutrons in the nucleus of an atom
7ElementA substance that cannot be broken down into simpler substances by ordinary chemical means
8Periodic tableAnd arrangement of elements in order of increasing atomic numbers that demonstrates the periodic patterns that occur among the elements
9PeriodElements that occur in a horizontal row on the periodic table
10GroupElements that occur in a vertical column on the periodic table also called a family
11MetalAn Element below and to the left of the stairs step line of metalloids, about 80% of the known elements are metals
12NonmetalAn element above and to the right of the stair step line of Matalloids.
13MetalloidsAn element with properties of both metals and non-metals located along the stair step line on the right side of the periodic table
14SyntheticNot found naturally on earth, man made
15IsotopeAtoms with the same number of protons but with a different number of neutrons