Group 1, 7 and 0 elements

The group 1 metals include...

• calcium, lithium, sodium

• calcium, lithium, pottasium

• potassium, lithium, sodium

• magnesium, lithium, sodium

All group 1 metals are...

• reactive with oxygen.

• 
  reactive with carbon dioxide.

  
  

• 
  reactive with nitrogen.

  
  

• 
  reactive with argon.

  
  

All group 1 metals are also...

• dull when cut with a knife.

• 
  shiny when cut with a knife.

  
  

• sad when cut with a knife.

  
  

• 
  reactive when cut with a knife.
  

As go down the list of group 1 metals...

• their melting points increase.

• their melting points stay the same.

• their melting points decrease.

• their melting points get more interesting.

Group 1 metals are not suitable for wedding rings because...

• they are moderately reactive with oxygen and water.

• they are not reactive with oxygen and water.

• they are somewhat reactive with oxygen and water.

• they are highly reactive with oxygen and water.

Group 7 elements include...

• iron, chlorine, fluorine.

• bromine, chlorine, iron.

• bromine, silicon, fluorine.

• bromine, chlorine, fluorine.

Group 7 elements are also called the...

• noble gases.

• transition metals.

• halogens.

• alkaline metals.

The reactivity of group 7 elements...

• decreases as you go up the group.

• stays the same as you go up the group.

• increases as you go up the group.

The melting point of group 7 elements...

• decreases as you go up the group.

• stays the same as you go up the group.

• increases as you go up the group.

Flourine has a melting point of -220C and a boling point of -188C. This means that at room temperature (20C) it will be a..

• solid.

• liquid.

• gas.