An Element with the Electron Configuration [Noble Gas]ns²(n - 1)d¹⁰np³

question 22

Multiple Choice

An element with the electron configuration [noble gas]ns²(n - 1) d¹⁰np³ has ____________ valence electrons.

• A)2
• B)3
• C)5
• D)10
• E)15

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Definitions:

Mosaicism

A condition in which an individual has two or more genetically different sets of cells in their body.

Translocation

A cause of Down syndrome in which part of the 21st chromosome of the human cell breaks off and attaches to another. Individuals with Down syndrome due to translocation have all of the features found in trisomy 21.

Down Syndrome

A genetic disorder caused by the presence of all or part of a third copy of chromosome 21, characterized by physical growth delays, characteristic facial features, and mild to moderate intellectual disability.

Non-social Environment

An environment lacking social interaction or influences, often used to study behaviors or responses without the effect of social factors.