Certain Metals Are Essential for Life at Low Concentrations and Typically

question 8

Multiple Choice

Certain metals are essential for life at low concentrations and typically function as protein cofactors required for enzymatic reactions.These particular elements are located in which group(s) and row(s) of the periodic table?

• A) Groups 6 through 12,row 4
• B) Groups 1 and 2,rows 3 and 4
• C) Group 1,row 5
• D) Groups 13 through 16,rows 4 through 6