AP Chemistry - Unit 1 Review

Front

What is the electron configuration for Sc in Sc(NO3)3?

Back

Front

What is the most likely identity of the element with the given ionization energies in Period 3?

Back

The most likely identity of the element is Magnesium.

Front

What is the most likely identity of an element if the options are Aluminum, Magnesium, Carbon, or Not enough information?

Back

The most likely identity of the element is Aluminum.

Front

How does the first ionization energy of iodine compare to that of fluorine?

Back

The first ionization energy of iodine is less than that of fluorine because iodine's electrons are farther from the nucleus and experience less effective nuclear charge.

Front

True or False: C6H8O6 and C3H4O3 have the same percent composition of both carbon and hydrogen.

Back

True.

Front

Define ionization energy.

Back

Ionization energy is the energy required to remove an electron from an atom in its gaseous state.

Front

What is the trend of ionization energy across a period?

Back

Ionization energy generally increases across a period from left to right.

Front

What is the trend of ionization energy down a group?

Back

Ionization energy generally decreases down a group.

Front

What is effective nuclear charge?

Back

Effective nuclear charge is the net positive charge experienced by an electron in a multi-electron atom.

Front

Explain the concept of percent composition in a compound.

Back

Percent composition is the percentage by mass of each element in a compound.