Radioactive elements decay to the stable heavy metal and you can say Lead's an element known to some by the simple PB or plan-ban. It's denser than most materials which is great if you want to make a bullet sinker or weight. Lead's an element known to some by the simple PB or PlanBan The ancient Romans used it to make water pipes Cause it's soft and malleable but it gave them stomach gripes Do do do do, do do do do do, do do do do, do do do do, do do do do Has a pigment it was used to colour paint But it's toxic to the brain, so nowadays it ain't Lead's an element known to some By the simple PB or pom pom Lead is also used in car batteries When they are worn out Recycle them please! Do-do-do-do Do-do-do-do Plum-plum! Lead's an element known to some By the simple PB We're Plumb-Bomb Plumber! Plumber! Plumber!