interpret the arrangement of the Periodic Table, including groups and periods...

Term Definition
Periodic table an arrangement of the elements in order of their atomic numbers such that elements with similar properties fall in the same column, or group
Group a vertical column of elements in the periodic table; elements in a group share chemical properties
Period in chemistry, a horizontal row of elements in the periodic table
Element is a chemical substance consisting of atoms having the same number of protons in their atomic nuclei
Property characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed
Atom the smallest unit of an element that maintains the properties of that element
Atomic mass is the mass of an atomic particle, sub-atomic particle, or molecule

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