WGU C165 Unit 4: Chemistry NEWEST | ALL QUESTIONS AND CORRECT ANSWERS WITH EXPLANATIONS | GRADED A+ | VERIFIED ANSWERS | JUST RELEASED

WGU C165 Unit 4: Chemistry NEWEST 2026-2027 | ALL
QUESTIONS AND CORRECT ANSWERS WITH EXPLANATIONS
| GRADED A+ | VERIFIED ANSWERS | JUST RELEASED




Electron Cloud


a region around the nucleus of an atom where electrons are likely to be
found

Valence Electrons


electrons in the outermost shell


Element


pure substance that consists entirely of one type of atom


Atomic Number


the number of protons in an atom


Atomic Symbol


A one or two letter abbreviation for an element

, Compound


A substance made up of atoms of two or more different elements joined
by chemical bonds


Chemical Bonds


An attraction between two atoms resulting from a sharing of outer-shell
electrons or the presence of opposite charges on the atoms. The bonded
atoms gain complete outer electron shells.


Molecules


Groups of two or more atoms held together by chemical bonds


Chemical


any substance that has a definite composition


organic compounds


carbon-based molecules


Pure Substance


A substance made of only one kind of matter and having definite
properties.