Actual Note Review Chem

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Chemistry

60 Terms

1
Gamma
________: has a lot of penetrating power, very dangerous, only stopped by very dense material, like lead.
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2
Pauli Exclusion principle
________: orbital can only hold two eectrons which spin in opposite directions (occupy empty orbitals before pairing up)
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3
Hunds rule
________: electrons fill orbitals of the same energy one at a time before doubling up.
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4
Fusion
________: combines nucleus which release energy, release more energy than fission, in nucleus.
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5
Isotope
________: variation of an atom that has a differenct mass, but the same chemical property bc of a diff amnt of neutrons.
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6
Amplitud
________: the length from either trough or crest from the middle.
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7
Aufbau rule
________: electrons occupy obital of the lowers orbital energy first.
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8
electromagnetic waves travel
: at the speed of light.
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9
Fission
________: splits nucles, creates a lot of energy, involves nucleus.
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10
Beta decay
________: 0-/1 e- can be stopped by clothing, can cause radiation damage, like skin burns.
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11
Alpha ray
________: alpha decay is 4 /2 He- can not penetrate most matter, can be stopped by paper.
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12
Sigfig rule
________ for addition and subtraction: least amount of decimal places.
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13
where in the atom is the proton and neutron
in the nucleus
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14
where in the atom is the electron
around the nucleus, in the orbitals bc opposite charges attract
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15
crest
the very top of a wavelength
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16
trough
the very bottom of a wavelength
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17
amplitud
the length from either trough or crest from the middle
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18
wavelength
the distance between each wavelength
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19
atom
smalletes unit of matter that retains chemical properties
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20
Isotope
variation of an atom that has a differenct mass, but the same chemical property bc of a diff amnt of neutrons
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21
Ion
atim with imbalanced charge
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22
cation
positive, subtract from electron
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23
anion
negative, add to electron
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24
variable and unit for speed
c and m/s
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25
variable and unit for frequency
v and Hz
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26
variable and unit for energy
E and J
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27
where the atomic mass goes in symbol notation
upper left
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28
where atomic number does in symbol notation
bottom left
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29
where charge goes in symbol notation
upper right
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30
alpha decay
4/2 He
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31
beta decay
0/-1 e
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32
shape, of orbitals, of electrons for S
sphere, 1 , 2
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33
shape, of orbitals, of electrons for P
dumbbell, 3, 6
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34
shape, of orbitals, of electrons for d
clover, 5, 10
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35
shape, of orbitals, of electrons for F
flower, 7, 14
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36
energy level 1
s, 1 orbital, 2 electrons
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37
energy level 2
s,p , 4 orbitals, 8 electrons
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38
energy level 3
s,p,d, 9 orbitals, 18 electrons
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39
energy level 4
s,p,d,f, 16 orbitals, 32 electrons
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40
Aufbau rule
electrons occupy obital of the lowers orbital energy first
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41
Pauli Exclusion principle
orbital can only hold two eectrons which spin in opposite directions (occupy empty orbitals before pairing up)
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42
Hunds rule
electrons fill orbitals of the same energy one at a time before doubling up
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43
gamma
has a lot of penetrating power, very dangerous, only stopped by very dense material, like lead
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44
fusion
combines nucleus which release energy, release more energy than fission, in nucleus
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45
fission
splits nucles, creates a lot of energy, involves nucleus
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46
how many nm in 1 m
10^9
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47
atomic mass =
protons and neutrons
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48
atomic number =
protons
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49
in a table, next to the name you put,
the atomic mass
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50
average atomic mass unit
amu
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51
average atomic mass formula
relative abundance x mass number + etc
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52
what do you do to the percent before the equation in average atomic mass
divide by 100
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53
sigfig rule for multiplication
least amount of sigfigs
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54
sigfig rule for addition and subtraction
least amount of decimal places
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55
to solve half life
find the amount of half lives that is occuring, then multiply that as an exponent to 1/2 and then solve
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56
all electromagnetic waves travel
at the speed of light
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57
ground state
lowest energy in electron
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58
excited state
electron at higher energy level
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59
ground state to excited
photon absorbed
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60
excited state to ground
photon emmited
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