Legislative size is a trade off between efficiency and representation; the smaller the legislature, the more efficiently it can operate, but the larger the legislature, the better it can represent the political diversity of its constituents.
The most chemically reactive metals are the alkali metals. Francium is the most reactive of these and of all metal (although it is present on earth only in exceedingly small q â¦ uantities, due to its radioactivity). The most reactive element available in useful quantities in Flourine.
The least reactive elements in the periodic table are the n â¦ oble gases or sometimes the inert gases. These are the elements of Group 18, and they have full valence shells. They are not interested in loaning out or borrowning electrons, and are very stable.