Atoms, Ions And Molecules Flashcards
What are the three types of radiation?
Gamma, beta and alpha
What is the radiation with a much bigger and positively charged particle?
Alpha
What type is the highest energy but not made up of particles?
Gamma
What radiation is small and made up of negatively charged particles?
Beta
What instrument makes noises and detects gamma radiation?
Geiger counter
What is the liquid scintillation counter used for?
It’s used to measure alpha and beta radiation
What can radioactive isotopes be used to do?
Treat diseases
What was a model later disproven?
The plum pudding model
What were some conclusions from the gold foil experiment?
Electrons move about and stay in the orbitals. Plum pudding model isn’t valid. Led to the nuclear view of atoms
Describe the nucleus
Positivity charged center of the atom, containing nearly all the mass of the atom but is about 0.1% the size of an atom and consists of both proton and neutron.
Why isn’t atomic number whole?
Isotopes