Do you need a well-equipped lab to measure the size of an atom (German, machine translation)? According to [stoppi], no. You need sunflower oil, some bear moss spores, and a bit of gasoline. You’ll ...

It started with a short in-class question. If you know the mass of one mole of platinum and the density of platinum, what is an estimate for the diameter of one platinum atom? Of course, this ...

To find out how much bigger one object is than another, divide the larger value by the smaller. Molecules are made from between 2 and several hundred atoms, so they are larger than the atoms which ...