GROUP 3

• WHAT ELEMENTS IN GROUP 3 ARE IN S-BLOCK?

  Na, Mg
• WHAT ELEMENTS IN GROUP 3 ARE P-BLOCK?

  Al, Si, P, S, Cl, Ar
• WHAT ELEMENTS IN GROUP 3 ARE METALS?

  Na, Mg, Al
• WHAT ELEMENTS IN GROUP 3 ARE SEMI-METALS?

  Si
• WHAT ELEMENTS IN GROUP 3 ARE NON-METALS?

  P, S, Cl
• WHAT ELEMENTS IN GROUP 3 ARE NOBLE GASES?

  Ar
• WHAT ELEMENTS IN GROUP 3 ARE GIANT METALLIC?

  Na, Mg, Al
• WHAT ELEMENTS IN GROUP 3 ARE MACROMOLECULES (GIANT COVALENT)?

  Si
• WHAT ELEMENTS IN GROUP 3 ARE MOLECUAR?

  P, S, Cl
• WHAT ELEMENTS IN GROUP 3 ARE ATOMIC?

  Ar
• WHAT TYPE OF STRUCTURES HAVE THE HIGHEST MELTING OR BOILING POINTS?

  giant structures
• WHAT TYPE OF STRUCTURES HAVE THE LOWEST MELTING OR BOILING POINTS?

  molecular/ atomic
• WHY DOES MELTING/ BOILING POINT INCREASE BETWEEN Na AND Mg?

  • metallic bond strength increases
  • ion charge increases
  • more electrons join sea of delocalised electrons
• WHAT DOES MELTING AND BOILING POINT OF COVALENT STRUCTURES DEPEND ON?

  size of van der Waals forces
• WHAT DOES THE SIZE OF VAN DER WAALS FORCES DEPEND ON?

  number of electrons and how closely molecules pack