Particles and Radiation Flashcards
What does every atom contain?
A positively charged nucleus composed on protons and neutrons, surrounded by electrons.
What is a nucleon?
The word used for a proton and a neutron in a nucleus.
What is a isotope?
An atom with the same number of protons, however a varying number of neutrons.
What is the formula for specific charge?
Charge/Mass
What property defines a hadron?
Particles that experience the strong nuclear force
What is the quark structure of a baryon?
Three quarks
What is the quark structure of a meson?
A quark and a anti quark
What is one similarity and one difference between a particle and its anti particle?
Both have the same rest mass
Opposite charges
What is the baryon number for a anti-proton?
-1
What is the charge of a anti proton?
-1.60*10^-19
What is the quark structure of a anti proton?
Anti Up, Anti Up, Anti Down
What is meant by an excited atom?
A particle that has moved up, or above the ground state.
What does the strong nuclear force do?
Binds hadrons together.
What do electrostatic and gravitational forces do to nucleons?
They act on nucleons, the repulsion from the electrostatic force is bigger than gravaitional attraction
What happens in alpha decay?
Nucleus is to big for strong interaction so (a) helium particle is emitted
You can measure this in a cloud chamber.
