Which of the following highlights a major difference between metals and nonmetals?

Options

1. AMetals are typically gases, while non-metals are typically liquids.
2. BMetals tend to gain electrons, while non-metals tend to lose electrons.
3. CMetals have low electrical conductivity, while non-metals have high electrical conductivity.
4. DMetals have a tendency to form positive ions, while non-metals have a tendency to form negative ions.