Read this excerpt from The Miracle Worker.
ANNIE: Oh, in grownups you have to, Mr. Anagnos. I mean in children it just seems a little - precocious, can I use that word?
ANAGNOS: Only if you can spell it.
Which element of drama does the author use in this excerpt?
dialogue that reveals personalities
stage directions that set the scene
stage directions that reveal emotion
dialogue with background information

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.

it marks things for degradation via the proteasome. it alters there celluar location.