Answered

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Which element has chemical properties that are most similar to the chemical properties of fluorine?
(1) boron (3) neon
(2) chlorine (4) oxygen

Sagot :

lulu1991
The answer is (2) chlorine. We can figure out some rules of properties of elements from the periodic table of elements. One of the important rule is that the elements which belongs to the same group has the similar properties. Fluorine and chlorine belong to the same group.
Dejanras

Answer is: 2) chlorine.

Fluorine (F) and chlorine (Cl) are halogen elements.

Halogen elements are in group 17: fluorine (F), chlorine (Cl), bromine (Br) and iodine (I). They are very reactive and easily form many compounds.

Both of them form diatomic covalent molecules (F₂, Cl₂).

Fluorine and chlorine are both in gaseous state.

Both molecules have single covalent bond and they are very reactive.

They have seven valence electrons.

They need to gain one electron to have electron cofiguration like next to it noble gas.

For example, fluorine has 9 electrons and it gain easily one electron in chemical reaction to have electron configuration like noble gas neon (Ne) with 10 electrons.

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