Naming Covalent Bonds

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds with other atoms.

Front

How many valence electrons do elements in group 14 contain?

Back

4

Front

What does the octet rule state?

Back

The octet rule states that elements tend to have 8 electrons in their outermost shell because that makes them more stable.

Front

What is the chemical formula for dinitrogen trioxide?

Back

N₂O₃

Front

Which molecule contains bonds of greater polarity: H₂O or OF₂?

Back

H₂O

Front

What is the chemical formula for chlorine dioxide?

Back

ClO₂

Front

Define a covalent bond.

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.

Front

What is the difference between polar and nonpolar covalent bonds?

Back

Polar covalent bonds occur when electrons are shared unequally between atoms, while nonpolar covalent bonds occur when electrons are shared equally.

Front

What is electronegativity?

Back

Electronegativity is a measure of an atom's ability to attract and hold onto electrons.

Front

How do you determine the polarity of a molecule?

Back

The polarity of a molecule can be determined by the difference in electronegativity between the bonded atoms and the molecular geometry.