The True Smile,which Involves the Orbicularis Oculi,has Been Termed the

question 99

Multiple Choice

The true smile,which involves the orbicularis oculi,has been termed the

• A) orbicularis smile.
• B) Ekman smile.
• C) Duchenne smile.
• D) legitimate smile.
• E) Barnes smirk.

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Definitions:

Boron Trifluoride

A binary compound composed of boron and fluorine with the formula BF3, known for its role as a strong Lewis acid in organic and inorganic chemical reactions.

Hybridized

A concept in chemistry where atomic orbitals mix to form new hybrid orbitals for bonding, providing a more accurate description of molecular bonding and geometry.

FBF Bond Angle

Refers specifically to the bond angle in a molecule of BF3 (Boron Trifluoride), where the three atoms of fluorine are bonded to a central boron atom, typically close to 120 degrees due to the trigonal planar shape.

Single Bond

A chemical bond involving two atoms sharing one pair of electrons, represented by a single line between the atoms.