Ionic Bonding

Ionic Bonds: 

Ionic Bonds And now we come to the meat of this project! The chemical bond between ions is known as an ionic bond. Ionic bonds have this basic formula: cation+n + anion-n = CationAnion0 The opposite charges of the two ions attract them to one another, and they bond to form a neutrally charged compound.

Example:: 

Example: Na1+ and Cl1- = NaCl As you can see, the sodium and chlorine ions bond. +1 + -1 = 0. The two charges have negated each other, resulting in a charge of 0, or neutral. Example 1: Example 2: Ca2+ and P3- = Ca3P2 As in Example 1, the charges of calcium and phosphorous have been balanced. Calcium has a charge of +2 and phosphorous has a charge of -3. 3 Calcium and 2 phosphorous are needed for the charges to negate each other in the compound.

Polyatomic Ions in a Bond: 

Polyatomic Ions in a Bond The same rule applies to polyatomic ions. Magnesium has a charge of +2, and nitrite has a charge of -1. Therefore, two nitrite molecules are needed to have an even bond. The nitrite molecule is put in parenthesis to express that there are two NO2 atoms, not N2O2. Example 1: Mg+2 and NO2-1 = Mg(NO2)2

Slide4: 

Here we have a sodium ion and a chlorine ion.

Slide5: 

One of sodium’s valence electrons transfers over to chlorines outer shell.

Slide6: 

The two atoms are now ionized.

Slide7: 

The forces of their opposite charges cause them to bond.

Slide8: 

NOW WASN’T THAT