Atoms And Radiation Flashcards
1
Q
Ernest Rutherford Discovered Which Two Types of Radiation?
A
- Alpha Radiation was Stopped by Paper.
- Beta Radiation went Through Paper.
2
Q
Scientists Discovered a Third Type (_________ Radiation), After Ernest Rutherford, Which is Even More Penetrating than Beta Radiation.
A
Gamma.
3
Q
Every Atom has a Nucleus Made Up of Protons and __________. Electrons Move About in _________ Levels Surrounding the Nucleus.
A
Neutrons…Energy…
4
Q
Most Atoms have a ___________ Nucleus. But the Atoms of a Radioactive Substance have a ___________ that is Unstable.
A
Stable…Nucleus…
5
Q
An Unstable Nucleus Becomes Stable or Less Unstable by ____________ Alpha, Beta or Gamma Radiation.
A
Emitting.
