NUCLEAR Flashcards
what is an isotope
A atom with a different number of neutrons of the same element
What does radio active element mean
when an element gives off radiation to become stable
What does Alpha radiation consist of
it is a helium nucleus and it contains 2 protons and 2 neutrons
Beta particle is what
Beta is fast moving electron
Gamma is
Gamma is an electromagnetic wave
What is an Ion
Ion is an atom with a charge
Are Alpha particle Ionised
Alpha particles are highly ionising
The isotope of americium-241, and an atomic number of 94 what does it decay too and what is the radiation given off?
americium-237, 92 giving of Alpha radiation 4He2
How is a Beta particle formed
Beta is a neutron changing into a proton and an electron. The electron is then given off.
who invented the plum pudding model
JJ Thomson
what is the plum pudding model
this model has negatively-charged electrons embedded in a sea of positive charge
how do nuclear power plants work
The heat produced during nuclear fission in the reactor core is used to boil water into steam, which turns the blades of a steam turbine. As the turbine blades turn, they drive generators that make electricity
difference between fission and fusion
fission is the division of one atom into two, and fusion is the combination of two lighter atoms into a larger one.
what’s ionising
convert (an atom, molecule, or substance) into an ion or ions, typically by removing one or more electrons.
difference between irradiation and contamination
irradiation Doesn’t cause the object to become radioactive while A contaminated object will be radioactive for as long as the source is on or in it
