Group 1 and Group 0 Elements

• What is a key property of Group 1 metals?

  They are much more reactive.
• How do Group 1 metals compare in density and hardness to most other metals?

  They are less dense and softer.
• What is a characteristic of the melting points of Group 1 metals?

  They have lower melting points.
• What type of elements are Group 0 elements?

  Non-metals with full outer shells.
• Why are Group 0 elements unreactive?

  Their structure is very stable.
• What is the physical state of all Group 0 elements at room temperature?

  They are gases.
• What trend occurs in boiling points as you go down Group 0?

  The boiling point increases.
• How many outer electrons do Group 1 elements have?

  One outer electron.
• What type of ions do Group 1 elements readily form?

  They form 1+ ions.
• What are the general reactions of Group 1 elements with water and chlorine?

  • Metal + water → metal hydroxide + hydrogen
  • Metal + chlorine → metal chloride
  • Metal + oxygen → metal oxide
• How does reactivity change as you move down Group 1?

  Reactivity increases down the group.
• What happens to the reaction with water as reactivity increases down Group 1?

  The reaction becomes more vigorous and explosive.