The
The EM Spectrum
We
divide the
roughly
Electromagnetic Spectrum
spectrum into
Radio Waves
-
NMR , MRI
2) When placed inside
glipspin
convenient regions based
,
between
photon
radio-wave
from "up"
field
directions
more
or
a
3 X108 st
imaging
magnetic
a
spin in 2
is The
energy difference
that o
c=
their
wavelength
.
on
can
,
composed of waves that all have at
is
EM
Ep1 2
to
,
down"
,
the nuclei
say
mere
2 states
or
radio
vice
some atoms
"up"and "down"
eas
so
of
waves
in
can
similar
so
make nuclei
versa
.
Microwaves
is The energy
relate
This
.
of
into
mineware
neighboring
of
in
me
g
energy
vibrate
.
Basis
basis
overy)
Molecules
Infrared
The
missware
IR
o
the
o
is enough to make molecule
retational speciespy and
,
spinning
and heat men
water morecues
.
up)
is new enough to make meleales
vibrational speciospy
.
bash
visible light
·
D
X
e
-
conjugated
haemoglobin orlodyes)
is
merables
large
dechone ,
light
Visible
.
together
close
has
molecules
making these
(EG :
electronic
the
and
. .
Carotene
,
energy
enough
energy
cauful
chlorophyl,
levels
are
excite
to
.
-
W
absorbed
reflected absorbed
B Why
leaves are
green
our
(intravidet)
is
The
even in
energy y
small
UV
is
so
molecules
the
separation screen
This is the bases Jer Overis
.
can
me
and
damage
our
initiate
cells
DNA
even
reactious
chemical
and
excire elecham
can
where
elechoic levels is large
it
deep UV
spechalcopy in
bands
it
great
=>
X-rays
Sunburn
break
chemical
lequally
and
it
can
caner .
a
eject
in
energy
calc
so
a
largethat can
↳
it
The
like XPS
·
X-rays
have
wavelengms similar
used ser
X-rays are
leagles in
crystals
(XRD) and crystallography
.
.
to
ioic bond
Xray diffraction
- X-ray havesimilar
set
and
Size
co crystale
↳
c
00
Xv
=
. . . . .
1
brightnes
I
S
wave
-
(H2]
m
X
distance
=
A
amplinde
=
period
g
=
T=
peaks
number
wave
Me
=
longh
=
time
to
I
in
second
completel oscillation
t
wave
↳ The
a
oscillations
o
give
o
wave
=
wase
o
v =
requency ,
=
two
between
disconce
=
g
8
oscillations
1
Unils
(cm)
v(s
-
<m
.
=
)
that
vo
are
easier
much
.
remember
"nu bar"
number
number
numbers
me
ware
but
get
into
+
can
=
1/ Xi am)
c
=
y
(cmsi)
x
=
(am")
Example :
Wavelenght
=
Warenumber
589
=
Y
.
3
nm
/yellar
=
=
89 3
.
light
Stx105
Cramsadium streettamp)
=
16969
.
283
:
int
Quantisation
Energy
atoms
o
& molecules
1 they
correct
restricted
the
0
light
of
~
Each
So
we
0
in
seen
will
can
me
y
specha
has
We
live
of
is
to
prequencies
and
molecules
energy leness
.
spectrum
elechase
at
emited.
non-sized
stars and
what
spectroscopically
even
atoms
unique
a
.
"quanta"
or
g
particles
their energy
spechoscopy
work out
emeX-rays
kau
unique set s
a
have
also
ware
leds determine
energy
of by
can
like
more
values energy ;
any
ateny melente
it
Level
discret values
,
between
Frontier
o
behave
have
to
gaps
and
analyzing
one
colems
them
9 .
sargate
and
we
determine
a
:
he
nebulae
can
analyse
no
the
regions
made
prequency
composition
consequences of energy qualisation
o
CO2
absorbs
(greenhouse
o
Ozone
abselbs
layer allows
but
o
protect
NMR ,
and
IR
espect.
in
me
UV
me
atmosphere
light but not visible light
visible sunlight
it
name
pan damaging
no
wrough
.
UV
IR
me
-
the zano
,
planet surence
Spectroscopy all depend
and exploit different
energy qualisation
tapes gadecular
vibrational).
energy levels (nuclear dectronic
UV/ ris
and
,
a
,
Energy quantisation
conclusion :
·
0
Energy is
Any
atom
and
·
Arms
·
Electrac
might
quantized
or
molecule
molecules
ateme
,
expect
.
only
can
only have
exist
idicules
and
in
certain
certain
behave
fixed energies
.
levels
nothing like we