Polar and Nonpolar Molecules

Which element has 5 electrons in its Lewis dot structure?

• Boron

• Carbon

• Phosphorus

• Sulfur

Tags

NGSS.HS-PS1-1

When is a molecule polar?

• when it is asymmetrical with at least one polar bond

• it is asymmetrical

• it is symmetrical

• it is symmetrical with at least one polar bond

This molecule has ______ bond and is a ______ molecule.

• polar, nonpolar

• nonpolar, nonpolar

• nonpolar, polar

• polar, polar

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

This molecule has _____ bonds and is a _______ molecule.

• polar, nonpolar

• nonpolar, nonpolar

• nonpolar, polar

• polar, polar

Tags

NGSS.HS-PS1-1

Carbon dioxide has polar bonds but is considered a nonpolar molecule. Why?

• it has an asymmetrical shape

• net dipole moment exists between the atoms of the molecule

• the bond polarity between C and O cancel

• C is considered slightly positive while O is slightly negative

This is an example of a ____ bond.

• nonpolar covalent

• ionic

• polar covalent

• metallic

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Is H₂S a polar or nonpolar molecule?

• polar

• nonpolar

Tags

NGSS.HS-PS1-2

What geometry does the molecular structure of PH₃ exhibit?

• bent

• linear

• tetrahedral

• trigonal planar

In covalent bonds, electrons are ____.

• lost

• transferred

• shared

• gained

What is the most electronegative element in the periodic table?

Tags

NGSS.HS-PS1-1