What is Th? Important knowledge about Th.

In fact, which chemical are you referring to as “Th”? The information you provided is not sufficient for me to write a chemistry introduction. I need to know what “Th” is. If Th is Thorium, a chemical element in the periodic table with symbol Th and atomic number 90, here are the basic facts.

1. Definition of Th
   Thorium is a silvery chemical element, especially, capable of radiation.
   1.1 Names
   1.1.1 Common name: Thorium
   1.1.2 English name: Thorium
   1.2 Atomic mass: 232.03806(2) u
   1.3 Atomic number: 90
   1.3.1 Molecular structure: Thorium does not form molecules with itself.
   1.4 Ion structure: Th₄+

2. Properties of Th
   2.1 Physical properties of Th
   State: Solid
   Color: Silver
   Odor: Odorless
   PH: Not applicable
   2.2 Chemical properties of Th: Thorium is very resistant to corrosion, even at high temperatures. It does not react with water, but reacts with most acids.

3. Common chemical equations of Th
   Metal reaction: None
   Acid reaction: Th + 4HNO₃ -> Th(NO₃)₄ + 2NO₂ + 2H₂O
   Non-metal reaction: Th + Cl₂ -> ThCl₄
   Reaction with salt: None

4. Synthesis of Th
   4.1 Laboratory synthesis of Th: Thorium is not synthesized in the laboratory. It is mined from Uranium and Monazite ores.
   4.2 Industrial synthesis of Th: Thorium is placed in a high-temperature furnace with the presence of coal powder, then it is filtered to form thorium.