In chemistry, a mole is a certain number of particles, usually of atoms or molecules. Just as a dozen particles (abbreviated doz.) would be 12 particles, a mole of particles (abbreviated mol) is 6.022137 x 1023 particles. This number, usually shortened...

The molecular weight, expressed in grams, of a...

The mole (symbol: mol) is the SI base unit that measures an amount of substance. The mole is a counting unit. One mole contains Avogadro's number (approximately 6.02214×1023) entities (atoms or molecules). A mole is much like "a dozen" in that both are...

An up-close look at these velvet-furred stars of the underground. Spring, summer, or fall, you're sure to recognize a literary celebrity in our midst. With a velvety coat, whiskered snout, and giant, cartoonlike hands, the busy mole, scurrying across the road, traveling...

Strike up the band. Break out those slide rules. It's Mole Day, a time set aside to honor one of the most basic units in chemistry. Like the hamburger, the Wienermobile and the typewriter, Mole Day has its roots right here in Wisconsin....

A defense lawyer wanted one thing clear at the start of the Band-Aid Bandit bank robbery trial Wednesday: The mole doesn't make the man.Prosecutors said Rafael Angel Rondon, 51, often used bandages to hide a distinctive mole during a five-year series of 39 bank robberies....

Prosecutors showed jurors Tuesday an FBI mole's shadowy videos of a reputed mobster collecting thousands of dollars in extortion money from an adult bookstore owner.Anyone else pressuring the store for such protection money will be in trouble with the mob, Frank "The German" Schweihs says...