IIRC potasium is the most reactive chemical in the periodic table, lights up on fire and speeds across the water surface.the_brainaic said:I'ld really like to see the reaction between francium and water actually, as theres a video of caesium that we are shown at school - the tiny lump shatters the water container.
Potassium is nowhere near the most reactive I'm afraid.... there are far more unstable elements. These unstable ones are the most reactive but also to least known as they are so reactive, you will find none which isn't a compoud and such instability leads to nuclear degradation of the atom - thus very short half lives. In the end, most probably end up as lead or similar.megatron said:IIRC potasium is the most reactive chemical in the periodic table, lights up on fire and speeds across the water surface.
I got an A in A level Chemistry in 2003 - trust me . In fact, what you describe sounds very much like the lie you get told up to GSCE level. It's a whole new ball game after that. The shells are not simple circles, they are in quantum shells known as s, p, d, and f, in that order. These orbitals run very much differently to each other. What you say is roughly how it works but the whole thing is so much more complicated than that.megatron said:What makes an element reactive is the number of electrons it has missing in its outter band. These bands surround the protons and neutrons which form the center of the atom. The first band around the protons and neutrons is filled with 2 electrons, and it takes an increasing number of neutrons to fill a band. This numbering of electrons is what determines the position of the element in the peroidic table.
As I said IIRC potassium is the most reactive element in the periodic table quite what this has to do with radioactivity I dont know.
smids said:I got an A in A level Chemistry in 2003 - trust me . In fact, what you describe sounds very much like the lie you get told up to GSCE level. It's a whole new ball game after that. The shells are not simple circles, they are in quantum shells known as s, p, d, and f, in that order. These orbitals run very much differently to each other. What you say is roughly how it works but the whole thing is so much more complicated than that.
Also, you will notice that Francium is at the base of Group 1 - i.e. the most reactive. This is because there are loads of shells in between the very far out furthest electron (simplistically). These electrons in between the outer electron and the nucleus mean that there is something known as 'electron shielding'. This should run in line with the GSCE Chemistry teaching - but even that doesn't give the whole picture.
You ask about radioactivity - well the most reactive elements are the ones which are very unstable. This instability basically means that it will react with virtually anything - IIRC, even the noble gases would be affected by these elements - they would form some strange bond, kind of like a delocalised bond -though don't quote me on that point, I'm not entirely sure about that one. Often, these super reactive elements are so ridicuously unstable, they decay, and radiate alpha, beta or gamma waves (think of the uranium and plutonium isotopes). This decay of the nucleus means that the atom breaks down into a smaller, more simple element, most radioactive materials ending up as some dense metal like lead.
Periodic table
smids said:Anyway, back on topic - I had this great idea. You could shoot the platters with a nail gun - this would cause so many tiny fractures all the way through the platter, pretty much rendering it a very difficult save unless you a fan of jigsaws with no template - also, you could then sand it.
Tommer said:unscrew the casing and leave it in coca cola for 12 hours.
It's all that static electricity you are generating. Do you wear a lot of Nylon? Even your OCUK Signature has been corrupted by static...Bundles said:Just send it to me, i seem to do a good enough job of making the data on my own hard drives unreadable.
Trust me, I can corrupt any hard drive with a windows installation on it with just a cheeky wink at 40 paces, i'm reknown for it, lol.
Melm0 said:Bash it into 4 pieces and put each bit in a separate corner of the universe
Tommer said:I've been told from a few people that the best way is to melt it ala terminator 2 style.