Choke Tubes Explained By CTD Blogger published on May 4, 2011 in Firearms The inside bore constriction at the muzzle end of a shotgunâs barrel is known as the âchoke.â
difference between elements and compounds atoms are the tiny units which collect up to form all the existing chemical substances atoms can join with other atoms in various ways thus form thousands of molecules and other compounds according to their electron donating or withdrawing abilities they can form covalent bonds or ionic bonds
How can you tell the difference between compounds that are ionic and molecular (also known as covalent)? It has to do with the elements that make them up: ionic compounds are made of metals and nonmetals, and molecular (or covalent) compounds are made of nonmetals.