What: "The halogens, for instance, consist of fluorine, chlorine, bromine, and iodine, and I once ventured the remark that they were red-headed and Irish, being in good part Irish myself. Fluorine, with the lightest atomic weight, is like the young lad that you can't hold back. It will eat through glass and combine with hydrogen, for instance, with explosive violence. Chlorine is heavier, and will combine with hydrogen in the light, but not in the dark, while it takes some chemical trickery to make bromine unite with it, and still more to make iodine do the same thing."

Writer: Not Stated

LCC:

Where:

Date: Apr 24 2014 2:42 PM