Write the standard notation for the Beta particle.
0 over -1, e or ß
100
What Chemistry principle governs all Nuclear Reactions?
Conservation of Mass
100
What is the definition of half-life?
The time it takes for half of a radioactive sample to decay.
100
Ms. Scheive has lived in Baltimore for __ years.
0.25 years
200
These two subatomic particles are found in the nucleus
Protons and Neutrons
200
Write the standard notation for the Alpha particle.
4 over 2 He or ª
200
Find the missing particle in this Absorption Reaction:
[ K-40 --> Ca-40 + ____ ]
0 over -1 e or ß
200
After one half life, a radioactive sample of U-238 decays into Th-234. If you started with 100g of U-238, how much Th-234 would you have after one half life?
50 g of Th-234
200
Where is Ms. Scheive from?
Near Chicago (Northwest Indiana)
300
This type of nuclear reaction results from the joining together of two separate nuclei.
Fusion
300
Write the standard notation for the Neutron.
1 over 0 n
300
DAILY DOUBLE!! You protect yourself from gamma radiation using _____.
Lead
300
A radioactive sample of 20g of O-20 decays into 5g after 4 days. What is the half-life of O-20?
2 half-lives in 4 days; HALF-LIFE = 2 days
300
What is Ms. Scheive's zodiac symbol?
Cancer
400
This type of nuclear reaction results from splitting of a single nuclei into two separate atoms
Fission
400
Write the standard notation for the Proton particle.
1 over 1 H
400
Write the balanced nuclear equation: Aluminum-27 absorbs an alpha particle to form Oxygen-17 and emits a Proton
(27 over 13 Al) + (4 over 2 He) --> (17 over 8 O) + (1 over 1 H)
400
A radioactive sample of K-45 decays to 10g after 4 half-lives. How much was there to begin with?
160g of K-45
400
Where did Ms. Scheive go to college?
IUPUI (Indiana U-Purdue U Indianapolis)
500
This subatomic particle is excluded from Nuclear Chemistry considerations.
The Electron
500
Aluminum can protect you from this type of decay.
Beta decay
500
Write the balanced nuclear reaction: Sodium-24 decays by beta emission
(24 over 11 Na) --> (24 over 12 Mg) + (0 over -1 e or ß)