Protons contain two 'up' quarks and one 'down' quark while neutrons contain one 'up' quark and two 'down' quarks. The gluons are responsible for binding the quarks to one another. Related Pages: All About Atoms. Video - How to Draw an Atom! What is an element? How many elements are there? What is the difference between atoms and elements?
For example, "biodegradable in 3 to 5 days" holds a lot more meaning than "biodegradable," as most substances will eventually break down if given enough time and the right ecological conditions. And claims like "no solvents," "no phosphates," or "plant-based" are more meaningful than vague terms like "ecologically-friendly" or "natural."' 3.