Polarity and electronegativity

Front

What is polarity in chemistry?

Back

Polarity refers to the distribution of electrical charge over the atoms joined by the bond. A polar molecule has a partial positive charge on one end and a partial negative charge on the other due to unequal sharing of electrons.

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. It is a key factor in determining the type of bond (ionic or covalent) that will form between atoms.

Front

How do you determine if a bond is polar or nonpolar?

Back

A bond is polar if there is a significant difference in electronegativity between the two atoms involved. If the difference is small or zero, the bond is considered nonpolar.

Front

What type of bond is formed when electrons are transferred from one atom to another?

Back

An ionic bond is formed when electrons are transferred from one atom to another, resulting in the formation of charged ions.

Front

What type of bond involves the equal sharing of electrons?

Back

A nonpolar covalent bond involves the equal sharing of electrons between two atoms.

Front

What type of bond involves the unequal sharing of electrons?

Back

A polar covalent bond involves the unequal sharing of electrons between two atoms.

Front

What is a Lewis dot structure?

Back

A Lewis dot structure is a diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.

Front

How many valence electrons does Fluorine have?

Back

Fluorine has 7 valence electrons.

Front

How many valence electrons does Hydrogen have?

Back

Hydrogen has 1 valence electron.

Front

What is a partial charge?

Back

A partial charge occurs when there is an unequal sharing of electrons in a bond, resulting in one atom having a slight positive charge and the other a slight negative charge.