Radioactivity Flashcards
What is a neutrons mass?
1
What is a neutrons relative charge?
0
What is a protons relative charge?
1
What is a protons relative mass?
1
What is a electrons relative mass?
0.0005
What is a electrons relative charge?
-1
What is a isotope?
Atoms with same number of protons but different number of neutrons.
What type of radiation is highly ionising?
Beta
What type of radiation has a few range of cm in the air?
Alpha
What are atoms overall charge?
A neutral charge
What type of radiation is weakly ionising?
Gamma radiation
What type of radiation has no charge?
Gamma radiation
How is beta emitted?
When a neutron turns into a proton in the nucleas and fires it out
What type of radiation has a charge of +2 ?
Alpha
What type of radiation has no charge?
Gamma radiation
What type of radiation has a +1 charge?
Beta
Name the two atomic models
Plum pudding and bohr model
What is the most penetrating form of radiation?
Gamma radiation
What describes alpha, gamma and beta?
Ionising and emitted by a unstable nuclei
What type of radiation is stopped by a thin sheet of aluminium?
Beta
What is radioactivity measured in?
Becquerels ( Bq )
