Molecular Polarity

Why is the molecule polar?

• The molecule is symmetrical and the hydrogens cancel out the pulling of the Fluorine

• There are different types of elements bonded to the central atom. The F pulls the electrons.

• There are no lone pairs on the central atom and all of the atoms bonded to the central atom are the same.

Tags

NGSS.HS-PS2-6

Why is the molecule nonpolar?

• There are lone pairs on the central atom.

• There are different types of elements bonded to the central atom.

• There are no lone pairs on the central atom and all of the atoms bonded to the central atom are the same. (symmetrical)

Why is the molecule polar?

• There are lone pairs on the central atom.

• There are different types of elements bonded to the central atom (not symmetrical)

• There are no lone pairs on the central atom and all of the atoms bonded to the central atom are the same.

Polar molecules have

• no charges.

• slight positive and negative charges on opposite ends of the molecules.

• only positive charges.

• either positive or negative charges, but not both.

3. BrF₃

• Polar

• Non-polar

Is this molecule polar or non-polar?

• Polar

• Non-polar

A bond with a partially negative end and a partially positive end is:

• ionic

• polar

• non-polar

• isometric

Partial charges like the ones shown here are called:

• dipoles

• deltas

• ions

• magnetic poles

If the CA has lone pair/s the molecule is

• nonpolar

• polar

• linear

• planar

Tags

NGSS.HS-PS1-3

The reason why there is an arrow with the tip over F is:

• it is a polar bond

• it is a non-polar bond

• it is an ionic bond

• fluorine has the highest electronegativity

• the F side of the molecule is negative because the electrons are around F

Tags

NGSS.HS-PS1-1