Group 0

• What are the elements in group 0 called?

  Noble gases
• Why are noble gases unreactive?


  They have full outer shell of electrons
• Why do the noble gases not easily form molecules?


  Their atoms have stable arrangements of electrons
• How many electrons do noble gases have in their outer shell?


  8
• What are the boiling points like of group 0 as you go down the group?


  Increase
• Why do the boiling points increase down group 0?


  The atoms get bigger as you go down. Bigger atoms have more electrons which makes the intermolecular forces stronger which requires more energy to overcome these forces, boiling points are higher