Waves and Stuff
More Stuff
Configurations
Electrons and more stuff
Isotopes/Ions
Abundance
Scientists
Nuclear Chemistry
Final Jeopardy
100
What is the relationship between frequency and wavelength?
Indirect
One increases, the other decreases
100
What subatomic particles make up the mass of an atom? Where are they located?
Protons and Neutrons
Nucleus
100
Which element has the electron configuration of :
1s2 , 2s2 , 2p6
Neon (Ne)
100
State the Aufbau Principle
Electrons fill the lowest energy orbital first
100
Protons + Neutrons = what?
Mass Number
100
Units for atomic mass
AMU
100
First to propose matter was made of atoms
Democritus
100
draw a gamma particle
y
200
Light and electrons can act as both ______ and _______
waves and particles
Also known as the wave-particle duality
200
State Heisenberg Uncertainty Principle
Electron speed and location cannot be determined at the same time.
200
Which element has the electron configuration of :
1s2 , 2s2 , 2p6 , 3s2 , 3p1
Aluminum (Al)
200
State hunds rule
fill all orbitals with same spin arrow before pairing them off
200
How many neutrons are in silver-109?
62
200
What's the average atomic mass of mercury ?
200.6
200
Gold Foil experiment
Ernest Rutherford
200
what is the mass of a alpha particle?
4 amu
300
What is this?
Hint: Known as an elements fingerprint
Atomic Emission Spectra
300
The unstable energy level is also know as...
Excited State
300
Identify the element with the noble gas configuration of
[Ar] 4s2 , 3d3
Vanadium (V)
300
When an electron in a hydrogen atom drops from the 5th to the 2nd energy level, 4.58 x 10-19 J of energy is released. What is the frequency of the photon produced ?
6.91 x 1014 Hz
300
If an ion loses 2 protons, what is the charge?
+2
300
Nitrogen has two naturally occurring isotopes, N-14 and N-15. The atomic mass of nitrogen is 14.007.
Which isotope is more abundant is nature? Explain how you know.
N-14
closer to the average atomic mass
300
Plum Pudding Model
JJ Thomson
300
put in order the nuclear particles from dangerous to least dangerous
gamma, beta, alpha
400
The lowest energy level is called?
Ground State
400
How do electrons change energy levels?
They absorb energy
400
Write the electron configuration for Gallium
What is the highest energy level?
How many electrons are in the highest energy level?
1s22s22p63s23p64s23d104p1
Highest energy Level: 4
3 electrons
400
What is the wavelength of a green light radiation that has a frequency of 6.26 x 1014 Hz?
4.79x10-7
400
Arsenic loses 3 electrons, write the ion symbol
As-3
400
Element X has two naturally occurring isotopes. X-107 has an abundance of 51.82% and a mass of 106.9 amu. X-109 has a relative abundance of 48.18% and a mass of 108.9 amu. Calculate the atomic mass and identify
Silver
107.9
400
Write the scientist/model that discovered each of the following:
Electron
Nucleus (also include what was found out about the nucleus)
Electrons traveled in orbitals
Matter was made of earth, fire, air, and water
JJ Thomson
Ernest rutherford (postive)
QMM
Aristotle
400
Write the nuclear equation for uranium-238 going under alpha decay
23892U --> 42He + 23290Th
500
When electrons become excited, they are in a ______ state. Eventually, they will return to the ground state and in the process electrons emit ______ in which is how we see light.
excited
photons
500
What is the difference between orbits and orbitals?
Orbits are fixed circular pathways
orbitals are 3D regions in the space around the nucleus
500
Write the orbital, electron, and noble gas configuration for Technetium
[Kr] 5s24d5
500
List all the elements present in unknown W
Cadnium
Sodium
500
This has 87 protons, 86 electrons, and 94 neutrons
Write the symbol for this element
18187Fr+1
500
Find the relative percentages of chlorine, if it is made of Cl-35 and Cl-37.
cl-35 77.5 %
cl-37 22.5%
500
What happened during the gold foil experiment to lead to the discovery of the nucleus? What charge does it have?
alpha particles bounced off nucleus, which means it has a positive charge
500
Uranium 238 undergoes
alpha,alpha,beta,positron emission, electron capture, beta decay, beta decay, alpha decay
23089Ac
500
write the electron configuration for Tungsten
1s22s22p63s23p64s23d104p65s24d105p66s24f145d4