Elements That Have Only One Electron in the Highest-Energy S

question 123

Multiple Choice

Elements that have only one electron in the highest-energy s sublevel in their ground state are called ________.

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

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Definitions:

Open Sentence

An expression or statement that contains one or more variables, which becomes either true or false when specific values are substituted.

Quantified Existential

A logical expression that asserts the existence of at least one instance of a certain property or classification.

Open Sentence

An algebraic expression that contains at least one variable and becomes either true or false when specific values are substituted for the variables.

Closed Sentence

In logic and mathematics, a statement or expression that is either always true or always false, containing no free variables.