Chapter 25:1 nuclear radiation Flashcards
what happened in 1896 whenthe French chemist Antoine Henri Becquerrel made an accidental discovery?
Uranium salts affected fog photographic film plates by fogging them
What Nobel piece prize did Marie curie win? T
1903
What is the spontaneous emission of rays or particles from certain elements?
Radioactivity
What are the Rays and particles emitted from a radioactive source called?
Nuclear radiation.
What is another name for radioactivity?
Radioactive decay
What to do atoms do in both chemical and nuclear reactions?
Become stable
How do chemical reactions tend to attain more stable electrons?
By transferring or sharing electrons
Do nuclear reactions begin the stable or unstable isotope?
Unstable aka radioisotopes
What is the difference between nuclear and chemical reactions?
Nuclear reactions are not affected by changes in temperature pressure or the presence of catalyst also nuclear reactions of A given radioisotope cannot be slow down sped up or stopped.
What are the three types of radiation?
Alpha radiation, beta radiation, and gamma radiation
What are alpha particles?
Helium nuclei
What consist of an alpha particle?
Two protons and two neutrons and has a double positive charge
What happens to the atomic number of the product when the Atom goes through alpha radiation?
Lowers by 2
What happens to the mass number of the product when it goes through alpha radiation?
Lowered by 4
Do alpha particles travel far and are penetrating?
No
