Chemistry Trimestral Review

What is a positively charged ion called?

• complex ion

• anion

• polyatomic ion

• cation

Nonmetals easily lose one or more electrons to attain a stable outer electron configuration.

• true

• false

What is the term for the electrostatic force that holds oppositely charged particles together in an ionic compound?

• covalent bond

• metallic bond

• ionic bond

• lattice bond

What is the force that holds two atoms together?

• chemical bond

• physical bond

• magnetic force

• electrostatic force

Binary ionic compounds ______. Select all that apply.

• may contain three or more different elements but only two types of ions

• contain a metallic cation and a nonmetallic anion

• contain only two different elements

• contain a nonmetallic cation and a metallic anion

Which of these ionic compounds are binary?

• magnesium chloride, MgCl₂

• sodium nitrate, Na(NO₃)

• magnesium oxide, MgO

• sodium chloride, NaCl

Is a type of chemical bond where two or more atoms share valence electrons.

• ionic bond

• covalent bond

• metallic bond

• hydrogen bond

In terms of energy change, the formation of ionic compounds from positive ions and negative ions ______.

• may be exothermic or endothermic

• is always exothermic

• is always endothermic

Which physical properties are typical of ionic compounds? Select all that apply.

• conduct electricity when dissolved

• do not conduct electricity as solids

• have high melting and boiling points

• do not conduct electricity as liquids

• strong but ductile

What is the term for the chemical formula for an ionic compound, which represents the simplest ratio of the ions involved?

• an ionic unit

• a lattice formula

• a ratio formula

• a formula unit