Where do ionic bonds form?

Answer 1

When atoms lose or gain or share electrons from or to or with their valance shells ionic bonds are formed.
Ionic bonds for when two ions become attracted to each other through electrostatic force. The objective for an Ion is to obtain the electron configuration of a noble gas.

For example... Na (sodium - has a charge of -1 meaning it has one more electron than a noble gas) and Cl (chlorine - has a charge of +1 meaning it has one less electron than a noble gas)

So Na needs to lose an electron, but Cl needs to gain one. So when they are combined, Na shares and electron with Cl and then Na loses the electron to obtain a noble gas configuration and Cl gains an electron to obtain a noble gas electron configuration.

In short... electrostatic force pulls together two ions to create an ionic bond because one ions has too many electrons and the other ion has too few electrons.

Answer 2

Ionic bonds in simplest terms occur when one element receives 1-3 electrons (e-) from another element (1 element receives, 1 element gives). Often times, they occur between metals and nonmetals (Cations + Anions) although this isn't always the case.

Any bonds that have a rating of 2.0 or greater on the Pauling scale of polarity are considered to be ionic in nature.

Answer 3

In an ionic bond, the electrons of one atom transfer to another. All electrons have valence levels, which circle around the nucleus of the atom. The first valence level has a maximum of two electrons. Once this requirement has been fulfilled, a second valence level is created, with a maximum of eight electrons. This is true for all the valence levels to come after the second level. So, if one atom has an outer valence level of 6 electrons, its goal is to obtain two electrons to complete the valence level. (only the outermost valence level may gain or lose electrons in ionic bonding) An atom with 3 electrons in the outer valence level will want to lose those 3 to obtain a valence level of 8.

For example, Oxygen (8 electrons in total) will fill out its first valence level with 2 electrons, and then have a second valence level with the remaining 6 electrons. This Oxygen atom wants to gain 2 electrons to fill out its outer valence level. A Magnesium atom (12 electrons in total) will fill out its first valence level with 2 electrons and its second with 8, ending up with 2 in the outer valence level. So, if this Oxygen atom meets this Magnesium atom, the Magnesium atom will transfer, or "lose," 2 electrons from its outer valence level. Therefore, the Magnesium atom will obtain a full outer valence level and so will the Oxygen atom.

Now, Oxygen has 10 electrons, and so does Magnesium. (This is just a coincidence, and all ionic bonding does not result in both atoms having the same number of electrons) Oxygen has 2 more than it did before, and Magnesium has 2 fewer, so they are now both isotopes. This is significant because electrons produce a negative charge, and the amount of protons (which have positive charges) is equal to the amount of electrons to balance the charge in the atom. In this case, Oxygen now has a charge of negative 2 (-2) because it gained 2 more negatively charged electrons. Magnesium now has a charge of positive 2 (+2) because it lost 2 negatively charged electrons, and the number of protons (12) is greater than the number of electrons. (10 after ionic bonding)

Answer 4

They usually form between the metals and non-metals catagory.