Biochem intro
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1
Atomic number
The number of protons in an atom
2
Atomic mass
average weight of an atom
3
AMU/Dalton
The typical unit for measuring weight for atoms
4
Electron shell
A cloud of electrons surrounding the nucleus or another shell
5
Valence shell
The outermost shell that defines the atoms stability
6
Oclet rule
The less full the valence letter, the more reactive the atom
7
Chemical bond
Two or more atoms interacting
8
Molecule
Two or more atoms bound together
9
Compound
Two or more atoms of different elements bound together
10
Covalent bond
A chemical bond in which atoms are shared
11
Non Polar covalent bonds
Covalent bonds with similar electronegativity
12
polar covalent bonds
Covalent bonds with very different electronegativity
13
electronegativity
The amount of pull an atom has
14
Ion
an atom that has lossed or gained electronegativity
15
cation
A positively charged ion
16
anion
a negatively charged ion
17
ionic bond
a bond in which one atom steals electrons from the other
18
hydrogen bonds
Polar covelent bonds being attracted to one other from varying electronegativity
19
Solvent
A substance that can dissolve molecules
20
Hydrophillic
Dissolves in water
21
Hydrophobic
Stays seperate from water
22
Surface tension
The tendacy for liquids to stick together
23
Organic molecules
naturally found molecules
24
hydrocarbons
an organic compound made entirely out of carbon and hydrogen
25
Isomer
molecules using the same atoms but different orientation
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