what is the most reactive element in the periodic table out of zinc and aluminium ?

Question: what is the most reactive element in the periodic table out of zinc and aluminium ?
- Keywords:
  aluminium,
  element,
  zinc
Asked by Ella to Anna, George, Jodi, Rob, Stefan on 18 Nov 2014.
- Anna Scaife answered on 18 Nov 2014:
  
  Hi Ella – neither zinc or aluminium is very reactive. Zinc is similar to magnesium in some ways (magnesium is pretty reactive) and it can have a strong reaction with steam. Aluminium doesn’t have any spectacular reactions but it oxidises (reacts with oxygen) easily and forms an oxide quickly.
- Stefan Lines answered on 18 Nov 2014:
  
  They’re both a bit rubbish at being reactive. I think Zinc might be slightly more so.

Question: what is the most reactive element in the periodic table out of zinc and aluminium ?