are solid at room temperature. are good electrical conductors. generally have very high densities. tend to form ions by gaining electrons.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Elements on the right side of the periodic table differ from the elements on the left side in that the elements on the right side
Possibilities:
- are solid at room temperature.
- are good electrical conductors.
- generally have very high densities.
- tend to form ions by gaining electrons.

tend to form ions by gaining electrons.