What Are the Elements in the "A" Columns of the Period

question 54

Multiple Choice

What are the elements in the "A" columns of the period table called?

• A)representative elements
• B)nonmetal elements
• C)metalloid elements
• D)transition elements

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Definitions:

Enzyme Molecule

A biological catalyst that speeds up the rate of chemical reactions in cells without being consumed in the process.

Substrate

A substance on which an enzyme acts; a reactant in an

Energy of Activation

The minimum amount of energy required to start a chemical reaction, often lowered by the presence of a catalyst.

Existing Bonds

Bonds that have already been issued and are currently traded in the bond market.