Grade 9 Worksheet

Which rule explains why atoms form bonds?

• A. Ionization Rule
• B. Octet Rule
• C. Reactivity Rule
• D. Noble Gas Rule

What is a positively charged ion called?

• A. Anion
• B. Proton
• C. Cation
• D. Electron

Which group of metals is the most reactive?

• A. Group 3
• B. Group 2
• C. Group 1
• D. Group 13

What type of bond forms between a metal and a non-metal?

• A. Covalent bond
• B. Metallic bond
• C. Hydrogen bond
• D. Ionic bond

What is the structure formed by the strong attractions among positive and negative ions in an ionic compound?

• A. Mineral
• B. Oxide
• C. Salt crystal
• D. Crystal lattice

Ionic bonds form only between nonmetals.

• True
• false

Noble gases are chemically reactive because they have full outer shells.

• True
• False

Metals lose electrons easily to form cations.

• True
• False

Ionic crystals conduct electricity in their solid state.

• true
• false

Smaller ions form stronger ionic bonds due to greater lattice energy.

• True
• False