Science Flashcards
These atoms have an overall magnetic moment arising from partially filled shells
paramagnetic
A toroidal device that confines a plasma using a combination of two magnetic fields
Tokamak
The ionization energy of a hydrogen atom
13.6 eV
the helium-neon laser produces light at this wavelength
632.8 nm)
Plutonium-239 half-life
24000 years
Responsible for the nuclear plant construction
Army Corps of Engineers
the n=2 emission series for the hydrogen atom
Balmer Series
A sealed chamber containing a vapor of water or alcohol that allows radiation passing through it to leave visible trains of ions
Cloud Chamber
Inserted into a nuclear reactor to regulate the reaction rate
Control Rods
Robert Boyle developed this theory regarding particles and matter
Corpuscular Theory
All ferromagnetic elements have a characteristic temperature above which they lose their magnetic properties. What is this temperature called?
Curie Temperature
Technique used to cool atoms used in laser operations
Doppler Cooling
“Father of the hydrogen bomb”
Edward Teller
Electrons with half-interger spin are known as
Fermions
Atoms that have at least one unpaired electron, but they tend to align with one another even when no magnetic field is present
Ferromagnetic
Importance of the EBR-1 reactor in Idaho in 1954
First electricity generating reactor
Nuclei that undergo nuclear fission upon colliding with a low-energy neutron are called
Fissile
Neutral atoms or molecules that contain unpaired electrons
Free radicals
Plant at Oak Ridge that specialized in the gaseous diffusion method
K-25
the n=1 emission series for the hydrogen atom
Lyman Series
This force acts between the proton and the neutron
Nuclear
Location of the primary nuclear enrichment facility for the Manhattan Project
Oak Ridge, Tennessee
The emission of electrons from the surface of a material when it is illuminated with light of certain frequencies
Photoelectric Effect
The absolute square of a particle’s wave function is equal to
Probability Density
the energy released by one reaction event, which is equal to the difference in mass between the products and reactants
Q Value
Unit used to measure doses of ionizing radiation
Sievert (Sv)
the minimum kinetic energy required for an endothermic reaction to take place
Threshold energy
Radon-222 is a common hazard for indoor air pollution and it is the result of a decay chain beginning with which naturally occurring element?
Uranium
