And even though pilots flying for large American airlines earn good pay, most such aviators don't work for the big carriers. The majority of commercial airline pilots fly for small regional carriers, earn starting pay around $20,000 yearly and have little job security.
These are aluminum atoms. An atom is the smallest particle of an element that has the properties of that element. Some properties of aluminum are: shiny, silver colored, fragile, and thin. Each element has its own type of properties.
An atom is the smallest unit of matter.(well, there are smaller(quarks, leptons) but for the sake of simplicity, atoms are among the smallest) A molecule is something like H2O(water) and is made up of atoms. A cell is made up of atoms and molecules.