periodic table a table of chemical elements arranged in order of atomic number
TRANSCRIPT
Periodic TableA table of chemical elements arranged in
order of atomic number.
Pure SubstanceA pure substance cannot be separated into simpler substances by chemical or physical means
ElementAn element is a pure substance that cannot be separated into simpler substances by chemical or physical means.
GroupsGroups are vertical columns on the periodic table.
PeriodsPeriods are horizontal rows on the periodic table.
Chemical SymbolAbbreviations for the chemical elements
Ex. Ca is the chemical symbol for calcium