Review Game Eureeka! Get a board, marker, wipey thing, and partner
1. Draw a model molecule and label:
• Protons, Neutrons, Electrons
• Quarks (up and down)
• The actual Molecule
• An Atom
A hydrogen atom in the ground state receives 10.2
eV of energy. To which energy level will this
become excited?
Using your Ref. TableWhat is the minimum energy required to excite a mercury atom initially in the ground
state?Find the difference in energy between the
ground state and the first level
(-10.38)- (-5.74) = -4.64 eV
A hydrogen atom emits a 2.55-eV photon as its electron changes from
one energy level to another
11.Express the energy emitted in Joules
12.Determine the frequency of the emitted photon.
13.What was the energy level change for the electron?
4.08 x 10 -19 Joules
6.154 x 1014 Hertz
It jumps from 4 to 2
a -meson has an electrical charge of +1 and a quark
combination:• su (with a line over the u)
• ds (with a line over the s)
• dc (with a line over the c)
• ud (with a line over the d)
• The line indicates the antiparticle
26. Although string theory does explain everything, it is not a
proven law because . . . .
It cannot be tested
27. Einstein’s Law of special relativity says:
• As something approaches the speed of light, its mass _________
• As something approaches the speed of light, relative to an outside observer, time _________
28. What are three products of a fission reaction?
1. Possibly radioactive elements
2. Neutrons that cause a chain reaction
3. energy