Why is sodium fluoride an ionic bond?

Answer 1

Ionic bonds exist between two atoms (or groups of atoms) based on their opposite electrical charge. In this case, sodium (Na) is positively charged +1 and fluorine becomes a fluoride ion (negatively charged at -1).

The reason the electrons are held this way (as opposed to being shared as in a covalent bond) is due to the relative electronegativities

of the two elements. Electonegativity is a measurement of how strongly an element 'wants' more electrons (in order to complete its valence shell).

Sodium, way over on the left side of the Periodic Table, has a very low electronegativity:

it is easier for it to lose one electron to become a cation (+ ion) and noble gas like. Fluorine on the other hand, is the electronegativity

champion - one extra electron brings it to a full stable 8 electron valence shell (octet).

Put together a willing donor and a willing recipient and you have the recipe for an ionic bond. One quick way to tell ionic bonds is to look for metals bonded to electronegative anions - Cl, Br, Fl, O, etc.

Answer 2

No, !!

1. Fluorine = F2 , gaseous, very reactive with everything -- and --
2. Sodium = Na , metal, very reactive with water

but sodium fluoride is a very STABLE salt, soluble in water and ionic: Na+ + F- ,

is used as anti-caries medicine

Answer 3

It id sn ionic bond.
metal+non-metal=ionic
2 non-metals=covalent

Answer 4

Yes it is .

Sodium fluoride is a very STABLE salt, soluble in water and ....

• ionic: Na+ + F-

It is used as anti-caries medicine

Answer 5

NaF is a non-metal plus a metal which dissolves (in a polar solution) to Na+ and F- ions.

So yes.

Answer 6

• The compound formed when Fluorine and Sodium reacts, Sodium Fluoride, is ionic. Ionic compounds are formed when a non-metal, such as Fluorine, reacts with a metal, such as Sodium.

Answer 7

yes