The elements in a row of the periodic table *
O are in the same family-
O have the same or nearly the same properties
O have the same average atomic mass.
O have properties that change in a pattem.

Water is called the universal solvent because more substances dissolve in water than in any other chemical. this has to do with the polarity of each water molecule. the hydrogen side of each water (h2o) molecule carries a slight positive electric charge, while the oxygen side carries a slight negative electric charge.