Biochemistry Flashcards

8016421160	atom	smallest unit of matter than still retains the properties of an element.	0
8016427807	molecule	a group of atoms held together by covalent bonds	1
8016434410	compound	a pure substance made of two or more elements chemically combined.	2
8016438763	element	pure substance made of one kind of atom	3
8016457883	atomic number	The amount of protons an atom has.	4
8016460180	atomic mass	the sum of the amount of protons and neutrons present in an atom.	5
8016476735	valence orbit	outer most orbit in an atom	6
8016479856	octet rule	the valence orbit must have 8 electrons	7
8016482458	Ion	an atom that has gained for lost valence electrons .	8
8016483964	Bond	Energy that holds atoms together by movement of electrons.	9
8016488714	Polarity	regions in the molecule that electrically charged	10
8016542257	polar molecule	molecule that has opposite ends with opposite electric charges.	11
8016547058	covalent bonds	chemical bonds that results from the sharing of valence electrons	12
8016565222	polar covalent bond	a type of bond that forms when electrons are not shared equally	13
8016568036	non-polar covalent bond	a type of bond that forms when electrons are shared equally or near equally.	14
8016575718	chemical bond	the force that holds two atoms together	15
8016592910	ionic bond	bonding between 2 ions	16
8016608791	hydrogen bond	hydrogen is attracted to a negatively charged atom on a neighboring molecule	17
8016613583	cohesion	the attraction of water molecules to each other	18
8016615368	surface tension	cohesive forces are strong enough to make water act as if there is a thin skin on its surface	19
8016618063	adhesion	attraction between particles of different substances	20