A main group element "X" is known to bond covalently with fluorine to form a compound with molecular formula XF2. In this compound, both X and F obtain noble gas electron arrangements by sharing electrons.
1. To which main group of the periodic table is element X is likely to belong.
2. Draw a diagram to show how the outer electrons are shared to form the covalent bonds in a molecule of XF2.
3. Which noble gas does fluorine achieve the electron arrangement of in the compound XF2
I don't understand number 1 at all really, please explain. It says that it has two fluorine (F2), so how on earth can 2 fluorine elements bond with something else? Like, since fluorine has 7 outer electrons already, then if it bonds twice, it will receive another 2 electrons and therefore it won't get a full outer shell. Am I correct or am I just soooooo wrong? I don't get it at all, please help me.
Just to let you know, I will know number 2 is you tell me number one, but I'll still need some help with 3. So just help me with 1 and 3, please.
Also, When I said the molecular formula (XF2) the "2" is supposed to be a subscript.