Radioactivity
Contrast alpha beta and gamma decay
Alpha has greater charge/mass but less penetrating powers and beta have -1/+1 charge and no mass but more penetrating powers.
Recognize the contributes made byBecquerel and Curie to knowledge and radioactivity
Becquerel and Curie contributed to knowledge and radioactivity by discovering radioactivity and radioactive decay.
Gamma Decay
Light with high energy(best penitrating)
Discuss dangers associated with radioactivity
Radiation sickness, weaken metal, damage spacecrafts, damage within matter, damage on the surface and damage just below the surface.
Discuss helpful uses of radiation
Smoke detectors, tracers, diagnose illnesses treat illnesses, prevent illness, sterilize food, detect defects in buildings and structures, space probes.
Radioactivity
The process by which an unstable nucleus gives off nuclear radiation
Radioactive Decay
The process where some nuclei give off nuclear radiation.
Alpha decay
The release of alpha particles: 2 protons/neutrons
Radioactivity sickness
Too much exposure to radiation(fatigue, loss of appetite, hair loss, destruction of blood cells, cancer and death)
Henri Becquerel
While trying to study X rays Becquerel discovered radioactivity.
Describe the penitrating abilities of nuclear radiation
alpha has the least penetrating ability and can be stopes by clothes, beta has more penetration than alpha and is stopped by aluminum and gamma has most penetration and is stopped by concrete.
Describe how nuclear radiation affects atoms and chemical bonds
break chemical bonds, give up electrons and damage atoms
Nuclear radiation
energy given off a radioactive material as it decays
Fluorescent Minerals
respond to UV light by glowing
Beta decay
the release of beta particles; electron or positron
Marie Curie
worked with Becquerel and named radioactivity and radioactive decay.