I'm glad you liked my articles. That makes it worth the writing. Heh. I just got in from playing with my excess sodium. Used a bit too big of a piece and had a nice loud explosion. Thankfully I had enough pool acid left to neutralize it.
Francium is an alkali metal, but it is INCREDIBLY radioactive and has a very short half-life. I do not believe that any visible quantities of it have ever been produced. If it were to be produced, I'm guessing that it would be a liquid metal as cesium is just barely solid at room temperature. Francium is a naturally occuring element, but again, its half-life is so small that ores don't exist. Atoms just exist for brief moments during the decay process of other, heavier, elements.
I'm still debating what my next article will be on. I do have all the noble gasses in very nice discharge tubes, but there isn't too much I could write about them. Phosphorus is really neat and has a nice history to it, but my black/violet phosphorus hasn't arrived yet. We'll see what happens once I get the time to write another article.