PERIODIC TABLE OF ELEMENTS NOTESHEET

Each element on the Periodic Table has a . DIFFERENT. atomic number. There are 18 . GROUPS (or vertical columns) of elements and 7 . PERIODS (or horizontal rows) of elements found on the Periodic Table. All elements in the same row have the same number of . ENERGY LEVELS. surrounding the nucleus of their atoms, while all elements in the same column have similar properties and the same number ... ................
................