What is F? The important knowledge about F.

Definition of F
F, or Fluorine, is a chemical element in the periodic table with the symbol F and atomic number 9. It is a pale yellow nonmetal, a colorless gas, highly toxic and has the strongest oxidizing property among the chemical elements. It usually exists in the form of F₂ molecules.
1.1.1 Common name: Fluor
1.1.2 English name: Fluorine
1.2. Atomic mass: 19
1.3. Atomic weight: 18.9984
1.3.1 Molecular structure: F-F
1.4 Ion structure: The F- ion has 10 electrons

Properties: F
2.1 Physical properties of F
State: gas
Color: colorless
Smell: unpleasant, toxic
pH: not applicable to gas
2.2 Chemical properties of F
Fluorine is the strongest oxidizer, it can react with almost all other elements on the periodic table.

Common chemical equations of F
3.1 Metal Reaction
2Al + 3F₂ -> 2AlF₃
3.2 Acid Reaction
No acid reaction with Fluorine
3.3 Non-metal Reaction
H₂ + F₂ -> 2HF
3.4 Reaction with Salt
2NaCl + F₂ -> 2NaF + Cl₂

Synthesis of F
4.1 Laboratory preparation of F
F₂ can be synthesized from HF and KMnO₄: 2KMnO₄ + 16HF -> 2KF + 2MnF₂ + 8H₂O + 5F₂
4.2 Industrial preparation of F
Fluorine is usually synthesized by electrolyzing a solution of KHF₂ in HF.