Question

1. choose the best answer.

which of these make the best conductors of electricity?
polar covalent
ionic bonding
metallic bonding
covalent bonding

Explanation:

To determine the best electrical conductor, we analyze each bonding type:

• Polar covalent compounds (like water with dissolved ions) conduct, but not as well as metals.
• Ionic compounds conduct when molten or dissolved (ions move), but solids don’t.
• Metallic bonding has delocalized electrons (free to move), enabling excellent electrical conductivity in solids.
• Covalent compounds (e.g., non - metals) usually don’t conduct as they lack free charge carriers.

So metallic bonding substances are the best conductors.

Answer:

metallic bonding (the option with "metallic bonding" text)