IONIC BONDING

What is the chemical formula for magnesium oxide?

• MgO

• MgCl2

• MgSO4

• Mg(OH)2

What is the chemical formula for potassium bromide?

• KBr

• K2Br

• KBr2

• KB

Which of the following ions has a negative charge?

• Anion

• Cation

• Monoatomic ion

• Polyatomic ion

How are ions formed in ionic bonding?

• Atoms share electrons.

• Atoms transfer protons.

• Atoms transfer electrons.

• Atoms share protons.

Which of the following ions has a positive charge?

• Anion

• Cation

• Monoatomic ion

• Polyatomic ion

What type of bond forms between atoms when electrons are transferred from one atom to another?

• Covalent bond

• Metallic bond

• Ionic bond

• Hydrogen bond

Which of the following is a characteristic of ionic compounds?

• They have high electrical conductivity when dissolved in water.

• They have low melting and boiling points.

• They are composed of discrete molecules.

• They are typically gases at room temperature.

What is the chemical formula for aluminum oxide?

• AlO

• Al₂O₃

• Al₂O

• AlO₃

Which of the following ions has a 2- charge?

• Cl⁻

• Na⁺

• O²⁻

• K⁺

Why are ionic compounds typically brittle?

• Because the ions are held together by strong covalent bonds.

• Because the ions are arranged in a regular crystal lattice structure.

• Because the ions are free to move and slide past each other.

• Because the crystal lattice can easily break along when force is applied to it.