Chemistry Unit 4 Test

thompson

plum pudding

rutherford

nuclear

thompson

plum pudding

rutherford

nuclear

bohr

planetary

schroedinger

quantum mechanical model (math)

s orbital

circle

p orbital

petal

n

principal quantum number

orbital parts

n^2

max electrons

2(e^2)

s

1 answer, n^2

p

3 answers, n^6

d

5 answers, n^10

f

7 answers, n^14

aufbau principle

e- occupy lowest energy it can

pauli's exclusion principle

max 2e- per orbital

hund's rule

one e- per orbital before pairing

einstein discovery

light is both particles and waves

photon

pocket of light energy

amplitude

origin to crest (m)

wavelength (λ)

distance between 2 waves (m)

wave cycle

1 wave

frequency (v)

waves per second (Hz)

speed constant

3.00 x 10^8 m/s

C = λ v

inverse relationship

energy

more waves per sec = higher energy

E = h v

direct relationship

plank's constant

6.6 x 10^-39 Js

all colors show as

white

EM acronym

Raging Red Martians Invade Venus Using X-Ray Guns

radio

bluetooth, wifi

radar

speed gun, weather forecast

microwaves

food cooking, phone

infared

heat, night vision

visible light

laser, barcode scaner

ultraviolet

tanning, blacklight

x-ray

medical scanning, security

gamma

radiotherapy (cancer), nuclear

AM

travels further

FM

more energy, higher frequency, better quality

excited atom gives off light and

drops an energy level

thing to know

atoms absorb energy, electrons at "ground state" become "excited" by absorbing a quantum of energy & move to a higher energy level or higher energy orbital. They immediately drop to a lower level and release energy as visible light or some other form of the electromagnetic spectrum.

lithium gives off

red light

radio waves in space

longer + less energetic than others, give astronomers access to obscure physics

$2 bill

thomas jefferson