Room No.17 Chlorine-tchi

He lives in the room No.17 at the Periodic-Table-Apartment(PTA).


He is poisonous to humans, and in fact he was used as a poison gas in warfare.
However, it is not harmful.
He is an essential element of the human body, killing bacteria in the stomach and helping to digest the protein.

His most famous work would be sodium chloride, made in cooperation with Sodium-tchi.
Sodium chloride is known as the main ingredient of salt and is used for cooking all over the world.
Furthermore, he has blended in large quantities into the vast ocean which is the symbol of the earth, and has contributed greatly to the development of our life.

The human world has also made him work for sterilization of pools and water.
He is also good at bleaching, and works well in the human world, but if he is too active, your face also must turn to whitish...

Like other halogen elements, he is anxious to want one electron.
So, he is always making friends with alkali metal who wants to give one electron.
That's why he is tightly bound to Sodium-tchi.

Other Group 17 elements

Room No.9 Fluorine-tchi

Room No.35 Bromine-tchi

Room No.53 Iodine-tchi

Room No.85 Astatine-ghost

Room No.9 Fluorine-tchi

He lives in the room No.9 at the Periodic-Table-Apartment(PTA).

He is one of the halogen.

He is so passionate that he shakes hand with other Little Elements emitting heat.
In other words, because he gets lonely easily, he'd like to play with other Little Elements.
So, you CANNOT see him alone in your earth.

Especially, he likes Hydrogen-tchi who lives in room No.1.
If Fruorine-tchi meets Hydrogen-tchi playing with other Little Elements, he often robs Hydrogen-tchi from them. 
You call the Hydrogen-tchi playing with Fluorine-tchi Hydrogen fluoride. 

Furthermore, if you want to prevent an injury you never make him alone.
Thanks to his passionate, you can get very stable polymer material like PTFE, PFA and so on.
PTFE is often coated to the surface of fly pan.

By the way, his teeth is very white.

Other Group 17 elements(Link is not still available)

Room No.17 Chlorine-tchi

Room No.35 Bromine-tchi

Room No.53 Iodine-tchi

Room No.85 Astatine-ghost