Scientists
Discovered the neutron
Who is Chadwick
Contains a (+) charge
The type of decay that produces an alpha particle
This is the amount of time required for 1/2 of an atom to decay
What is 1/2 Life
The number of protons are represented by this notation:
4521Sc
What is 21
Discovered the nucleus
Who is Rutherford
The location of the neutron
What is inside the nucleus
Type of decay represented by this particle: 0-1e
What is Beta Decay
This is the 1/2 Life amount of a 200g sample that decays to 12.5g in 28.8s
What is 7.2s
The number of neutrons calculated from this notation:
Sulfur-34
What is 18
Composed 5 points to the Atomic Theory
Who is Dalton
The overall charge of the nucleus
What is positive
Type of decay represented by this equations:
12553I → 00ɣ + 12553I
What is Gamma Decay
This is how many 1/2 Lives will occur if the sample decays in 76 weeks and has a 1/2-life of 15.2 weeks.
The number of electrons calculated from this notation:
8135Br1-
What is 36
Used the Cathode Ray Tube experiment
Who is J.J. Thomson
What are protons & neutrons
This element is missing from the equation:
17578Pt --> 42He + ?
What is 17176Os
This is the total amount of time it takes a sample to decay from 80g to 5g if it has a 1/2-life of 32.5s
What is 130s
These 2 are the only ones known: Bromine-79 & Bromine-81
What are isotopes
Discovered the mass of the electron
Millikan
The atom has fewer of these subatomic particles if the overall charge of the atom is positive
What are electrons
This type of decay is represented by the following incomplete equation:
3516S --> 3517Cl + ?
What is Beta Decay
This fraction represents the amount of the sample remaining after 3 1/2-lives
What is 1/8
This is the reason why 20482Pb & 20582Pb & 20882Pb are different