The Elements Numbered 21 Through 30 Are Examples of _______

question 70

Multiple Choice

The elements numbered 21 through 30 are examples of _______.

• A) transition metals
• B) noble gases
• C) alkali earth metals
• D) alkali metals
• E) halogens

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Definitions:

Hydrogen

A chemical element with symbol H and atomic number 1, being the lightest and most abundant element in the universe.

Sulfhydryl

A functional group in organic chemistry consisting of a sulfur atom covalently bonded to a hydrogen atom, commonly found in proteins.

Proteins

Large biomolecules consisting of one or more long chains of amino acid residues, essential for the structure, function, and regulation of the body's tissues and organs.

Amino Acids

Organic compounds that combine to form proteins and are known as the building blocks of life, essential for various bodily functions.