Which Element Is NOT a Metal

question 14

Multiple Choice

Which element is NOT a metal?

• A) Mg
• B) S
• C) Sn
• D) Ti

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Definitions:

Pyrimidines

Nitrogenous bases, each composed of a single ring of carbon and nitrogen atoms (e.g., thymine, cytosine, and uracil); components of nucleic acids. Compare with purines.

Phosphate Groups

Phosphate groups are chemical groups consisting of a phosphorus atom bonded to four oxygen atoms (PO4), important in energy transfer within cells.

Ribose Groups

Components of RNA molecules consisting of five-carbon sugars connected to the nucleobases and phosphate groups.

Polysaccharide

A complex carbohydrate composed of a long chain of monosaccharide units bonded together, serving various functions including energy storage and structural roles.