You Are in a Sleep Lab and Have Just Been

question 47

Multiple Choice

You are in a sleep lab and have just been hooked up to several machines.Researchers are interested in measuring all but which of the following?

• A)eye movements
• B)brain waves
• C)bladder activity
• D)muscle activity

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Definitions:

Lone Pairs

Pairs of valence electrons that are not shared with another atom and do not participate in bonding, but significantly influence the shape and properties of molecules.

Lewis Structures

Diagrams that represent the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.

Molecular Formula

A notation that uses chemical symbols and numerical subscripts to represent the types and quantities of atoms in a molecule.

Valence

The combining capacity of an element or particle, often determined by the number of electrons that an atom can share, gain, or lose.