Particles and Waves Flashcards
What is the nucleus held together by
Binding engery
What causes binding engery
The total mass if the nucleus is less than the combined mass of it constituent parts
What is binding engery
The amount of energy required to hold the nucleus together
What’s in isotope
An element with the same amount of protons but different number of neutrons
What does it mean when an atom is said ti be stable
Does not undergo radioactive decay
What does it mean when an atom is unstable
Will undergo radioactive decay and change into an atom that is stable
Elements that are unstable ans have to many neutrons will…
Give off radiation that turns neutrons into protons ejecting electrons (beta particles)
When unstable atoms with too many protons will…
Eject an entrie helium nuclei.
Definition of alpha radiation
Helium nucleus slow moving
Definition of beta
Fast moving electrons
Definition of a gamma rays
High frequency wave that apart of the electromagnetic spectrum
Alpha
4he2
Beta
0e-1
Gamma rays
+y
Explain beta decay
Beta decays into a proton and electron. This will come from the nucleus
Explain gamma rays radiation
The overall nucleus doesn’t change. They simply loss enegery
Two different types if matter
Hadrones
Leptons
Leptons particles
Moun
Tau
Electron
Twi different types of hadrones
Baryons
Measons
Different types of measons
Pion
Koan
How many qurks make up a meason
2
Different types if baryons
Protons
Neutrons
How many quarks make up a baryon
3
Explain the structure of a leptons
They are fundamental and have no internal structure