Atomic Physics Flashcards
1
Q
Alpha particles
α-particles
A
Helium nucleus
Stopped by paper
Highest ionization potential
2
Q
Beta-particles
β-particles
A
Fast moving electrons
Stopped by aluminum
Less ionization potential
3
Q
Gamma-particles
γ-rays
A
Electromagnetic radiation
Only stopped by thick a sheet of lead
Least ionization potential
4
Q
Half-life
A
Time in which the activity or mass becomes half
5
Q
Atomic symbol
A
A
X
Z
A is the total no of
protons and neutrons
Z is the total no of protons
6
Q
Isotopes
A
Same number of protons but different number of
neutrons
