What is Se3F3? Important knowledge about Se3F3.

Firstly, I apologize for a misunderstanding. Currently, there is no chemical substance called Se₃F₃ in the existing chemical classification system. The electron configuration of the element Se (Selenium) does not allow it to bond with 3 F (Fluorine) atoms within the same molecule.

However, I can introduce about SeF₆, a related chemical substance. SeF₆, or Selenium Hexafluoride, is a chemical compound of selenium and fluorine.

1. Common name: Selenium Hexafluoride
   English Name: Selenium Hexafluoride
   1.2. Atomic mass: 192.95
   1.3. Atomic weight: 79.96 (Se), 18.998 (F)
   1.4 Ion structure: SeF₆ does not form ions under normal conditions.

2. Properties of SeF₆
   2.1 Physical properties: It is a gas at room temperature, colorless, odorless, and has no alkaline or acidic properties (pH 7).
   2.2 Chemical properties: It readily reacts with water to produce Hydrogen fluoride and Selenium Dioxide.

3. Common chemical equation of SeF₆:
   SeF₆ + 3H₂O -> SeO₂ + 6HF

4. Synthesis of SeF₆:
   4.1 Laboratory synthesis: Se + 3F₂ -> SeF₆
   4.2 Industrial synthesis: Similarly to the lab, the reaction between Selenium and Fluorine produces SeF₆.