1 Explain the meaning of various chemical formulas (empirical, molecular, and structural formulas). 2  Calculate weight and mole percentages from a formula.  Derive chemical formulas from a given set of information.
A: Zinc belongs to the family of elements found in Group 12. Some other elements in this family are cadmium and mercury. These three elements are metals, but mercury is a metal that is liquid at room temperature, while zinc and cadmium are solids at room temperature.
Zinc (Zn) Atomic number: 30 Weight: 65.39 30 protons 30 electrons neutrons in variable numbers, depending on which isotope (%occurring in nature): 34 (48.9%), 36 (27.8 â¦ %), 37 (4.1%), 38 (18.6%) or 40 (0.6%)