AP Chemistry Unit 2 Flashcard

Front

The ion NO- has _____ valence electrons.

Back

12

Front

In the nitrite ion (NO2-), __________.

Back

both bonds are the same because of resonance.

Front

The formal charge on carbon in a molecule is calculated to be _______.

Back

0

Front

Potassium iodide, KI, has what type of bonding?

Back

ionic

Front

Of the following molecules, which has the largest dipole moment? CO, CO2, O2, HF

Back

HF

Front

What is the definition of valence electrons?

Back

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

Front

What is resonance in chemistry?

Back

Resonance is a concept where a molecule can be represented by two or more valid Lewis structures.

Front

How do you calculate formal charge?

Back

Formal charge = (Valence electrons) - (Non-bonding electrons) - (Bonding electrons/2)

Front

What type of bond is formed between potassium and iodine in KI?

Back

An ionic bond is formed due to the transfer of electrons.

Front

What is a dipole moment?

Back

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