After 70 days,the number of half-lives of Argon-37 (half life is 35 days) that have elapsed.
What is 2?
100
When writing nuclear equations for alpha decay, beta decay, or positron emission, the location of the released particle in the equation.
What is with the daughter product (on the right side)?
100
Cesium-137 undergoes beta decay to form this.
What is barium-137?
100
In nuclear equations, these two things must be balanced on each side.
What are total mass number and total atomic number?
100
An alpha particle is the same as an atom of this element without any electrons.
What is helium?
200
The effects that temperature and pressure have on radioactive decay.
What is no effect?
200
Nuclear reaction in which an atom is hit by neutrons and splits.
What is nuclear fission?
200
Francium (Fr)-208 undergoes alpha decay to form this.
What is Astatine (At)-204?
200
The heaviest particle emitted by a radioactive element.
What is an alpha particle?
200
A beta particle is this.
What is a high-energy electron?
300
The amount of nickel remaining when 10g of nickel-56 (half life is 6.1 days) undergoes electron capture for 61 days. (in correct sig figs).
What is 0.01g?
300
2 alpha particles combining to form a heavier atom is an example of this process.
What is nuclear fusion?
300
Sodium-11 undergoes electron capture to form this.
What is neon-10?
300
Shorter half-lives are associated with this kind of radioactive element.
What is more unstable?
300
A positron is this.
What is the anti-matter counterpart of an electron (an electron with a positive charge)?
400
When 4.000 x 103g of Iodine-111 undergoes positron emission (half life of Iodine-111 is 2.5 seconds), for 3.0 x 101 seconds, this is what is left. (in correct sig figs)
What is 0.98g?
400
Two physical conditions required to achieve nuclear fusion.
What are very high temperature and pressure?
400
Phosphorous-30 undergoes positron emission to form this.
What is silicon-30?
400
The series of decay processes an element goes through before reaching a stable form.
What is the decay chain?
400
A gamma ray is this.
What is a very high energy photon (particle of light)
500
Starting mass of C-14 when 100g remains after 3 half lives.
What is 800g C-14?
500
The process shown here:
12 0 12
C + e --> B
6 -1 5
What is electron capture?
500
Calcium-41 undergoes electron capture to form this.
What is potassium-41?
500
The minimum amount of the radioactive material that sustains a chain reaction.
What is critical mass?
500
Emitting a neutron during decay has this effect on the parent atom.
What is no change to atomic number but decreases mass number by 1?