Best Answer: An ionic radius, is the radius of an ion, either by gaining electrons or losing an electrons is considered to be an ion.n nonmetals, the ionic radii is larger than atomic radii, because non metals tend to gain electrons in the o uter shell. The electrons that it gained repel each other(because of same charge) so require more space, creating a greater radii. tmlfan Â· 9 years ago. Thumbs up.
Dynamite is an explosive made of nitroglycerin, sorbents (such as powdered shells or clay) and stabilizers. It was invented by the Swedish chemist and engineer Alfred Nobel in Geesthacht, and patented in 1867. It rapidly gained wide-scale use as a safer alternative to gun powder and nitroglycerin.
But other than that, there was little real progress until the English scientist William Gilbert in 1600 described the electrification of many substances and coined the term electricity from the Greek word for amber. As a result, Gilbert is called the father of modern electric power. In 1660, Otto von Guericke invented a crude machine for producing static electricity. It was a ball of sulfur, rotated by a crank with one hand and rubbed with the other.