- Mercury is liquid at room temperature
- Mercury is a kind of metal
- Hence, mercury is a metal that is liquid at room temperature

- Mercury is a metal that is liquid at room temperature
- Metals are usually solid at room temperature
- So, mercury is different from other metals

So, mercury is different from other metals
Question
According to the Periodic Table of the Elements, mercury (Hg) is different from other metals because mercury is

Context
- Mercury is liquid at room temperature 
- Metals are usually solid at room temperature 
- Mercury is a kind of metal