Why you should ditch your denim at 53: Research suggests jeans should be left for younger generations. 1  Research is bad news for denim devotees like Jeremy Clarkson, 56. 2  Study also found most people spend up to five days looking for ideal fit. 3  Shoppers wait average of three years before buying another pair.
Ionic comes from ion as you might have guessed. An ion is a charged particle (either positive or negative), and ionic is the adjective meaning charged. An ionic bond is a chemical bond based on electrostatic attraction (the attraction of charges), and we generally associate it with the bonding of metals to non-metals.
An ionic compound is generally a compound of a metal and a nonmetal. With [math]NaCl[/math], [math]Na[/math] is the metal, and [math]Cl[/math] is the nonmetal (in an oversimplified way, you can think of it as one element from the left side of the periodic table, and one from the right side... sort of).