Alpha Decay Flashcards
1
Q
Occurs when unstable loses a particle composed of
A
2 protons, 2 neutrons
2
Q
Alpha particles are identical to the _ nuclei
A
Helium-4
3
Q
Alpha decay changes an atom into atom with 2 less atomic number and
A
Emits helium (alpha particle)
4
Q
Original atom in alpha decay is called
A
Parent nuclide
5
Q
Product of decay is called (new atom)
A
Daughter nuclide
6
Q
Nuclear reactions are represented by
A
Nuclear equations
7
Q
Nuclear equations are always
A
Balanced
8
Q
Sum of mass # and atomic # equal
A
He 2 + Th 90 = U 92
He 4 + Th 234 = U 238
9
Q
Determine parent nuclide by
A
Adding atomic number by 2 and mass number by 4
