Page 16 - classification of elements

Electropositive radical: These are those radicals that

have positive charge in them.

Monovalent Bivalent Trivalent Tetravalent

Radical Molecular Radical Molecular Radical Molecular Radical Molecular

formula formula formula formula

Sodium Na + Ferrous Fe ++ Alumunium Al +++ Plumbic Pb ++++

Potassium K + Magnesium Mg ++ Auric Au +++ Stannic Sn ++++

Ammonium NH 4 + Calcium Ca ++ Chromium Cr +++

Hydrogen H + Mercuric Hg ++ Ferric Fe +++

Aurous Au + Zinc Zn ++ Boron B +++

Cuprous Cu + Cupric Cu ++ Auric Au +++

Mercurous Hg + Barium Ba ++