Er, but how does that make it more massive. I'm confused. Not to mention, Osmium, the most densest naturally occurring element which weighs 53 pounds per brick sized chunk of it, a brick, meaning the ones you see in red brick buildings, would have a lower mass than Uranium. I'm really confused how an object higher up the periodic table of elements has a higher mass than something else lower on the table, when that would make objects have a much higher weight as well, and they do not. So, how can Iodine be more massive, if it weighs less? The mass of an object determines it's weight in the presence of gravity. The more massive an object, the more weight that object has. A house weighs more than me, because it has a greater mass. Density does play a role in this, of course. Otherwise an uranium fuel rod should weigh several dozen times than that of a same sized object made out of Osmium. Last time I checked, they don't weigh more than 90 pounds at most. Your statement would mean that it would weigh almost a full ton. Please help me figure this out, Mining, because it's looking as though the laws of Physics have broken down. Perhaps, but I don't know. I believe the formation of the moon was an important event. If what you've shown is true, that makes it about as important as a nice fireworks show. Nice way to downplay such an important event. Also, It's not like it will kill you to agree with me on something.