The periodic table

    Cards (7)

    • What are the horizontal rows in the modern periodic table called?
      Periods
    • How are elements arranged in the modern periodic table?
      Elements are arranged in order of increasing atomic number
    • What are the vertical columns in the modern periodic table called?
      Groups
    • If elements are placed together in a group in the periodic table, what does this mean for their properties?

      Similar
    • Why is the periodic table called ‘the periodic table’?

      The table is called a periodic table because similar properties occur at regular intervals.
    • What do elements in the same group of the periodic table have in common regarding their outer shell electrons?
      They have the same number of electrons in their outer shell.
    • How does the number of outer electrons affect the chemical properties of elements in the same group?
      It gives them similar chemical properties.
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