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Lecture 3

BIOL 1115 Lecture Notes - Lecture 3: Ionic Bonding, Catabolism

2 pages52 viewsSpring 2018

Department
Biology
Course Code
BIOL 1115
Professor
Kenneth Nauman
Lecture
3

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ATOMS 3MOLECULES
CHEMISTRY
The study of matter
>
matter -made up of atoms
>
mass
-
measure OF amount of matter in an object
>
element
-
one type of atom
>
ATOM -basic unit of matter
~25 elements are essential to life
>
C. 0,H,Nmake up 96% of living matter
>compound -2's elements
ATOMS
>
proton
-+charged
-
each element has °n 'Ve #Of PROTONS (mass #JNucleus
-#of e
-=#of p(Neutral )
>
Neutrons -neutral
-
ISOTOPES -atoms Of same element w| diff #Of neutrons
°
some are unstable decay of nucleus diff element
radioactive decay
-
give off particles }energy
-
mass #=protons +neutrons
-
atomic weight
-
avg mass of all naturally occurring isotopes
>Electrons
-
vary in amount of nrg they possess
a
electromagnetic -light
e
Kinetic -due to motion -always has
potential -stored in object
-
temperature -measure of the average KE of particles
-
farther back from nucleus -more PEE
-
has
only be at certain distances
changing shells input of energy
°
z-8-8-16
.FULL SHELL not react (valence )
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