Fluorine.
Fluorine
A fluorine atom has 9 protons and 9 electrons, which are the defining features of an element.
Fluorine is an element and barium is also an element. There is no fluorine in barium and not barium in fluorine.
Fluorine reacts violently with cold water, releasing toxic hydrogen fluoride gas and producing a mixture of hydrofluoric acid (HF) and oxygen. This reaction is highly exothermic and can be explosive.
Fluorine seems a likely answer
The valency of fluorine is -1.
Fluorine.
No. Fluorine is a gas.
no fluorine is a halogen
fluorine stable fluorine diatomic is unstable
Fluorine is Gas