Molecular Geometry and polarity

Front

What is the octet rule?

Back

The octet rule states that most elements need 8 valence electrons to achieve a stable electron configuration.

Front

Which element has a stronger pull on shared electrons in a bond: phosphorus or chlorine?

Back

Chlorine has a stronger pull on shared electrons due to its higher electronegativity.

Front

What is a polar molecule?

Back

A polar molecule is one where the electron distribution is asymmetrical, leading to a partial positive and negative charge.

Front

What is a non-polar molecule?

Back

A non-polar molecule has symmetrical electron distribution, resulting in no overall charge difference.

Front

What is the molecular geometry of PH3?

Back

The molecular geometry of PH3 is trigonal pyramidal.

Front

Define electronegativity.

Back

Electronegativity is the ability of an atom to attract shared electrons in a chemical bond.

Front

What is the difference between polar and non-polar bonds?

Back

Polar bonds have unequal sharing of electrons, while non-polar bonds have equal sharing.

Front

What is the significance of molecular geometry in determining polarity?

Back

Molecular geometry affects the distribution of charge, which determines whether a molecule is polar or non-polar.

Front

What is a dipole moment?

Back

A dipole moment is a measure of the separation of positive and negative charges in a molecule.

Front

How does the shape of a molecule influence its polarity?

Back

The shape determines how the dipoles from individual bonds add up; if they cancel out, the molecule is non-polar.