The valency of fluorine is -1.
Fluorine is -1 valence
1
Both have one electron vacancy in their valency orbital.
Two, unless an oxygen atom is bonded to another oxygen atom or to a fluorine atom.
+4 valency
Its valency is -2 Its chemical formula is Cr2O7
The valency of bromide ion (Br-) is -1.
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Both have one electron vacancy in their valency orbital.
the simple molecular structure allows higher concentration of electron to pass through freely
Bromine is a non-metal and a part of the halogen family. Other members of this family are Chlorine, Fluorine, Iodine and Astatine. So, like other members of this family, Bromine has a valency of 1.
Two, unless an oxygen atom is bonded to another oxygen atom or to a fluorine atom.
flourine and other halogens are monovalent so use minus one valency and forms one bond
The element chlorine shares similar characteristics with fluorine. Both the elements are in same group 17. Their valency is same(7). Both of them are found in same state i.e. gaseous
The highest oxidation state for an element is +7, but this is not unique to any one element: All of the halogen elements except fluorine have oxyacids with this oxidation state.
valency of lithium - 1
valency of Rf =4 valency of Db=5 valency of Sg=6 valency of Bh=7 valency of Hs=8 valency of Mt=unknown
-1 valency
The atomic number of fluorine is 9. Therefore its outermost shell contain 7 electrons and hence its valency (oxidation state) is -1.Hence fluorine will take part in chemical reactions by accepting 1 electron to complete its octet. So it forms negative ion F- .Added:Actually this is the only possible ion form of fluorine, being the most electronegative element of all. Positive ions are impossible.