Chemistry Unit 5 Test Review - Part 1

Front

What is the octet rule?

Back

The octet rule states that atoms tend to gain, lose, or share electrons in order to have eight valence electrons, achieving a stable electron configuration similar to that of noble gases.

Front

How does calcium obey the octet rule when forming compounds?

Back

Calcium obeys the octet rule by losing 2 electrons.

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 does oxygen have?

Back

Oxygen has 6 valence electrons.

Front

What is the formula for sodium oxide?

Back

The formula for sodium oxide is Na2O.

Front

How many valence electrons are transferred from the oxygen atom to the sodium atom in the formation of sodium oxide?

Back

0 valence electrons are transferred from the oxygen atom to the sodium atom.

Front

What is the formula for aluminum permanganate?

Back

The formula for aluminum permanganate is Al(MnO4)3.

Front

What are cations?

Back

Cations are positively charged ions that are formed when an atom loses one or more electrons.

Front

Where are cations found on the Periodic Table?

Back

Cations are found among metals on the Periodic Table.

Front

What are anions?

Back

Anions are negatively charged ions that are formed when an atom gains one or more electrons.