Which of the following is a common property of non-metals?
Exist as solids at room temperature
Tend to gain electrons in chemical reactions
High thermal conductivity
Readily form cations in chemical reactions
Correct answer is B
Tend to gain electrons in chemical reactions. Non-metals typically have a high electronegativity and tend to gain electrons to achieve a stable electron configuration. This results in the formation of negatively charged ions (anions) during chemical reactions.