Nuclear Radiation (24.1) Flashcards
Nuclear Chemistry is referred to what?
The structure of atomic nuclei and the changes they undergo.
True or False:
Nuclear reactions are different from other types of reactions
TRUE
Who isolated the first radioactive materials?
Marie Curie and her husband Pierre
What are Radioisotopes?
They are Isotopes of atoms with unstable nuclei
What is Radioactive Decay?
It is a process where unstable nuclei emit radiation to attain more stable atomic configurations
What are the three most common types of radiation?
Alpha, beta, and gamma.
Alpha particles have the same composition as a helium nucleus, Which is?
Two protons and two neutrons.
Whats the charge of Alpha particles?
2+ charge
Alpha radiation is not very penetrating why?
a single sheet of paper will stop an alpha particle.
Whats the charge and mass of beta particles?
1– charge, mass is insignificant
Beta radiation is a stream of fast moving particles with greater penetrating power, so what will a sheet of thin foil do?
A thin sheet of foil will stop them
What are gamma rays?
Gamma rays are high-energy electromagnetic radiation
Whats the mass and charge of a gamma ray?
Gamma rays have no mass or charge
Gamma rays accopmany what and what?
Alpha and Beta radiation
What are X-rays?
X rays are a form of high-energy electromagnetic radiation emitted from certain materials in an excited state.
