What is the number of fluorine atoms in Freon-12?

When silica reacts with HF, it forms fluorosilicic acid. What is the number of fluorine atoms present in one mole of fluorosilicic acid.

Atomic number of fluorine is

Atomic number of hydrogen is 1 and the atomic number of fluorine atom is 9. Write the formation of hydrogen fluoride (HF).

What is freon ?

What is freons?

What is freon ?

Which is the outermost shell of fluorine atom ?

What will be the atomic radius of fluorine atom of a covalently bonded fluorine molecule with internuclear distance 128 pm ?