Due to its electronegativity, oxygen forms chemical bonds with almost all other elements at elevated temperatures to give corresponding oxides. However, some elements readily form oxides at standard conditions for temperature and pressure; the rusting of iron is an example. The surface of metals like aluminium and titanium are oxidized in the presence of air and become coated with a thin film of oxide that passivates the metal and slows further corrosion. Some of the transition metal oxides are found in nature as non-stoichiometric compounds, with a slightly less metal than the chemical formula would show. For example, the natural occurring FeO (wüstite) is actually written as Fe1 − xO, where x is usually around 0.05

Electronegativity, symbol χ (the Greek letter chi), is a chemical property that describes the tendency of an atom or a functional group to attract electrons (or electron density) towards itself.[1] An atom's electronegativity is affected by both its atomic number and the distance that its valence electrons reside from the charged nucleus. The higher the associated electronegativity number, the more an element or compound attracts electrons towards it. First proposed by Linus Pauling in 1932 as a development of valence bond theory,[2] it has been shown to correlate with a number of other chemical properties. Electronegativity cannot be directly measured and must be calculated from other atomic or molecular properties. Several methods of calculation have been proposed, and although there may be small differences in the numerical values of the electronegativity, all methods show the same periodic trends between elements.

florine + air jadi oksigen dan ozone? gimana reaksinya, far?

aqueous... berarti dalam pelarut air
hasilnya mengerikan gitu. oksidator no 1 dan no 3 berkumpul. HF adalah bahan yang korosif, meskipun sifat asamnya lemah. kena baju dan kulit dijamin bisa bolong. pernah ada yang pengalaman kena tetesan HF. sepatunya bolong, kukunya juga bolong sampe tembus ke jaringan otot di bawah kuku.