Which of the following is a characteristic shared by all metals on the periodic table?

• A. They are all liquid at room temperature.
• B. They all have high electronegativity.
• C. They are all magnetic.
• D. They are good conductors of electricity.

Answer: (D)

Verified step by step guidance

1. Understand the properties of metals by reviewing their general characteristics on the periodic table.
2. Recall that metals typically have high electrical conductivity due to the presence of free-moving electrons in their structure.
3. Evaluate each option: Metals are not all liquid at room temperature (e.g., most are solid), so that option is incorrect.
4. Consider electronegativity: Metals generally have low electronegativity, so 'high electronegativity' is not a shared characteristic.
5. Magnetism is not universal among metals; only some metals like iron, cobalt, and nickel are magnetic, so the shared characteristic is that metals are good conductors of electricity.