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31 Cards in this Set

  • Front
  • Back

Force in the nucleus that holds the protons and neutrons together

Strong nuclear force

Conversion of one nuclides into another in a spontaneous nuclear reaction

Radioactive decay

Phenomenon of mass dissapearing when particles are assembled together into an oxygen atom

Nuclear mass defect

A straightforward consequence of the Theory of relativity

Nuclear mass defect

A straightforward consequence of the Theory of relativity

Nuclear mass defect

States that matter can neither be created or destroyed

Law of conservation of matter and energy

(Or law of conservation of energy)

Nuclear binding energy

Energy equivalent to the mass defect

Kinetic energy gained by an electronic when it accelerates through 1v of electrical potential

Electric volt

Quantity for combining nuclei found by dividing the binding energy by the number of nucleons in nucleus

Binding energy per nucleon

Higher the binding energy more strongly the _

Nucleaus is held together

Splitting of heavy elements into lighter elements


Binding energy per nucleon with heavier nuclei


Chemical reaction may be described by

Chemical equation

2 rules for nuclear equation

Mass number must be conserved

Nucleaur charge must be conserved

2 main types of radioactive decay

Alpha and beta

Neutron radiation

Emmision of high speed neutrons ejected from the nucleus

Occors when an unstable atom ejects a clump of two protons and neutrons

Alpha particle

Occors when a neutron in an atoms nucleus changes into a proton and emits an electron in the process

Beta particle

Commonly used in luminous watches, firearm sights, and exit signs


Releases electromagnetic waves of very high frequency and energy

Gamma decay

Elements with atomic numbers beyond that of uranium

Transuranium elements

Decay rate

Half life

Amount of nuclides remaining after each_ is one half of what we started with

Half life

Half life of a sub determines the..

Intensity of radiation it produces

Amount of decay occurring in a radioactive sunstance


SI unit of activity

Becquerel (Bq)

Exactly 37 billion disintegrations per second


New atom that results after radioactive decay

Daughter element

(Or daughter nuclides)

Long series of radioactive nuclides ending in a stable nuclide

Radioactive decay series

Nuclear reaction induced by pelting a sample with other particles

Bombardment reactions

Uses magnetic and electrical fields to accelerate charged particles to energies, can be used to initiate nuclear reactions

Particle accelerators