Chemistry Chapter 7 Test

Indicate whether the statement is true or false. 1. A cation is a negatively charged atom.

• True

• False

Indicate whether the statement is true or false. 2. Metallic elements tend to form cations (positive ions) rather than anions (negative ions).

• True

• False

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

In an ionic bond, two cations can bond together to form a compound.

• True

• False

Indicate whether the statement is true or false. 4. The octet rule states that atoms will gain, lose, or share electrons to achieve a complete set of eight valence electrons.

• True

• False

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

According to the electron sea model, metals consist of metallic nuclei surrounded by delocalized valence electrons.

• True

• False

Indicate whether the statement is true or false. 6. The oxidation number of an ion is equal to the number of valence electrons the ion contains.

• True

• False

Indicate whether the statement is true or false. 7. Elements in the s- or p-blocks generally have only one common oxidation number, while d-block elements can have more than one possible oxidation number.

• True

• False

Indicate whether the statement is true or false. 8. Phosphide is the name of the anion formed when phosphorus gains three electrons.

• True

• False

Indicate whether the statement is true or false. 9. All of the nonmetals on the periodic table are gases.

• True

• False

Indicate whether the statement is true or false. 10. A metallic bond is the attraction of metallic nuclei for delocalized electrons.

• True

• False