In Which Groups Do All the Elements Have the Same

question 63

Multiple Choice

In which groups do all the elements have the same number of valence electrons?

• A) O, S, Se
• B) N, As, Se
• C) Ag, Cd, Ar
• D) Na, Ca, Ba
• E) N, O, Br

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Definitions:

Mass

A physical property indicating the amount of matter in an object, typically measured in kilograms or grams.

Density

A characteristic indicating the amount of mass contained in a given volume of a material.

Volume

The quantity of three-dimensional space taken up by an object or material, expressed in cubic units.

Substance

A form of matter with a specific chemical composition and distinct properties, distinct from mixtures.