Question on bonding?

Question

Explain how NaNo3 is an example of two different types of bonding?

Answer 1

Sodium actually is a metal, and it has a charge of positive one. Nitrate is a polyatomic ion, meaning atoms of oxygen and nitrogen are covalently bonded to each other (bonding due to the sharing of electrons), and the nitrate ion has a charge of (-1).

You can easily determine what any bond type is if you have access to a periodic table that contains the electronegativity of each atom. First, though, sodium IS a metal and NO3 contains three N-O covalent bonds. A bond is simply the term used when two atoms share electrons. If you subtract the electronegativity of each of the two bonding atoms the resulting number will tell you what type of bond you have. If the number is between 0 and 1.51, then you have a covalent bond (a relatively equal or completely equal sharing of electrons). If your number is greater than 1.51 then you have an ionic bond (unequal sharing of electrons). Remember that ionic bonds produce ions, meaning that the electrons involved in the bond reside on one atom the vast majority of the time, whereas electrons in a covalent bond spend closer to 50/50 time around each atom.

To determine what types of bonds NaNO3 contains, you first must draw out the complete structure. You can find the structure at www.chemfinder.com if you are unsure how to draw it. The structure contains two N-O single bonds, and N=O double bond and an Na-O bond. Electronegativities are as follows: N = 3.0, O = 3.5 and Na = 0.9. N-O bonds have an electronegativity difference of 3.5 - 3.0 = 0.5, which is less than 1.51 and means that the bond is covalent. O-Na bonds have an electronegativity difference of 3.5 - 0.9 = 2.6, which is higher than 1.51 and so is an ionic bond. Remember that ionic bonds produce ions, and in the structure you have a positively charged sodium and a negatively charged oxygen.

Answer 2

well Na has a subscript number of 2 because it has 2 valence electrons.and No3...mmmmmmmmmmm....oh its bacause No3 is a something i cant think f it like complex or whatever element combing two or more elements already..yeah if that makes sence run with it