Chemical Principles seventh edition by Atkins, Jones, and Laverman. M H E Freeman presented by Macmillan Learning. Francium, Fr , is thought to be the most reactive of the group 1 alkali metals. However, it is radioactive, has a half-life on the order of minutes, and is available in only small amounts, making it difficult to study. Based on the properties of the other group 1 alkali metals and the periodic trends of these properties, predict the atomic radius, ionic radius of the 1 cation, and the first ionization energy of francium. Element Atomic radius (pm) Radius of 1 ion (pm) First ionization energy (kJ/mol) K 227 138 418 Rb 248 152 402 Cs 265 167 376 atomic radius of Fr : pm ionic radius of Fr : pm first ionization energy of Fr : kJ/mol

you need to stop taking that class

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.