How heavey would TOP QUARK weigh if where the size of a tennis ball?

Question: How heavey would TOP QUARK weigh if where the size of a tennis ball?
- Keywords:
  ball,
  quark,
  space,
  sub-atomic,
  tennis
Asked by metalmaster99 to Ben, Clare, Ezzy, Mario, Sam on 15 Mar 2012.
- Clare Burrage answered on 15 Mar 2012:
  
  Each top quark has a tiny mass. You would need ten billion billion billion of them to make up a gram. We think that quarks are fundamental particles, this means that they don’t have any size, they’re really just points, so you can’t scale them up to the size of a tennis ball.

Question: How heavey would TOP QUARK weigh if where the size of a tennis ball?