AP Chemistry - Unit 1 Review

Front

What is the identity of the element with atomic number 13?

Back

Aluminum (Al)

Front

What is the electron configuration for Magnesium (Mg)?

Back

1s^22s^22p^63s^2

Front

What is the chemical formula for magnesium phosphate?

Back

Mg_3(PO_4)_2

Front

True or False: C_6H_8O_6 and C_3H_4O_3 have the same percent composition of both carbon and hydrogen.

Back

True

Front

What is the most likely identity of an element with a specific ionization energy pattern in Period 3?

Back

It can be determined by comparing the ionization energies to known values.

Front

Define ionization energy.

Back

The energy required to remove an electron from an atom or ion.

Front

What is the percent composition of a compound?

Back

The percentage by mass of each element in a compound.

Front

How do you determine the electron configuration of an element?

Back

By following the Aufbau principle, Hund's rule, and the Pauli exclusion principle.

Front

What is the significance of the periodic table in chemistry?

Back

It organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What is a chemical formula?

Back

A representation of a substance using symbols for its constituent elements and numerical subscripts.