Question

instructions: for each trend listed below, circle the arrows that correctly indicate the direction in which the trend generally increases.
21._____electronegativity ← ↑ ↓ →
22._____ionization energy ← ↑ ↓ →
23._____atomic radius ← ↑ ↓ →
24._____metallic character ← ↑ ↓ →
25._____nonmetallic character ← ↑ ↓ →

Explanation:

• Electronegativity: Electronegativity increases from left to right across a period (→) and from bottom to top within a group (↑).
• Ionization Energy: Ionization energy increases from left to right across a period (→) and from bottom to top within a group (↑).
• Atomic Radius: Atomic radius decreases from left to right across a period (←) and increases from top to bottom within a group (↓).
• Metallic Character: Metallic character decreases from left to right across a period (←) and increases from top to bottom within a group (↓).
• Non - metallic Character: Non - metallic character increases from left to right across a period (→) and decreases from top to bottom within a group (↑).

Answer:

1. ↑, →
2. ↑, →
3. ←, ↓
4. ←, ↓
5. ↑, →