Which Species Has 18 Electrons

question 66

Multiple Choice

Which species has 18 electrons?

• A)"³⁹K"
• B)"³²S^2-"
• C)"³⁵Cl"
• D)"²⁷Al³⁺"
• E)"⁶⁴Cu²⁺"

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Definitions:

Normal Distribution

A bell-shaped frequency distribution curve that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Bell-Shaped Curve

A graph describing the normal distribution, showing most instances occurring near the mean and fewer instances as one moves farther from the mean.

Intelligence

The ability to learn, understand, and apply knowledge, solve problems, and adapt to new situations.

Mental Age

A concept used to describe the intellectual capability of a person (often a child) compared to the average intellectual performance in their actual chronological age group.