Chemistry Unit 5 Test Review - Part 1

Front

Atoms gain or lose electrons to achieve a _______________.

Back

stable electron configuration

Front

Write the electron configuration for the ion for: sodium.

Back

[Ne]

Front

How many electrons are transferred from the potassium atom to the nitrogen atom in the formation of potassium nitride?

Back

1

Front

_______________ occur between a metal and a nonmetal.

Back

Ionic bond

Front

Which subatomic particles determines the properties of an element?

Back

electron

Front

What is the charge of a sodium ion (Na+)?

Back

+1

Front

What type of bond involves the sharing of electron pairs between atoms?

Back

Covalent bond

Front

What is the electron configuration for a neutral potassium atom?

Back

[Ar] 4s1

Front

What is the primary difference between ionic and covalent bonds?

Back

Ionic bonds involve transfer of electrons, while covalent bonds involve sharing of electrons.

Front

What is the role of neutrons in an atom?

Back

Neutrons contribute to the atomic mass and stabilize the nucleus.