WS – Radioactive Decay

Date: Per

Balancing Nuclear Equations

A.  Write a balanced nuclear reaction for the reaction in which oxygen-15 undergoes positron emission.

B.  Determine what type of decay occurs when thorium-231 undergoes radioactive decay to form protactinium-231.

C.  Write the nuclear equation for the alpha decay of astatine-213.

D.  Write a balanced nuclear equation for the alpha decay of americium-241.

E.  Write a balanced equation for the beta decay of bromine-84.

F.  Write a balanced equation for the beta decay of selenium-75.

G.  Write a balance nuclear equation for the reaction in which the transition metal zirconium-97 undergoes beta decay.

H.  Write a balanced nuclear equation for the induced transmutation of aluminum-27 into phosphorus-30 by alpha bombardment. A neutron is emitted from the aluminum atom in the reaction.

I.  Write a balanced nuclear equation for the induced transmutation of aluminum-27 into sodium-27 by neutron bombardment. An alpha particle is emitted in the reaction.

J. Write a balanced nuclear equation for the alpha particle bombardment of A neutron is emitted by the reaction.

K. Write a balanced nuclear equation for the induced transmutation of uranium-238 into californium- 246 by bombardment with carbon-12.

L. Write a balanced nuclear reaction for the bombardment of with alpha particles to produce and a neutron.

M. Complete the following nuclear equations:

a.  +

b.  +

c.  +

d.  +

e.  +

f.  +

g.  +

h + + 2 + at no. should be 92

i. + 2 +

j. +

k. +

l. +

m. +

Nuclear Reactions

Date: Per __

Write a balanced equation for each of the following nuclear reactions.

1. Oxygen-16 plus a neutron results in the formation of another element and the release of an alpha particle.

2. Boron-10 plus a neutron results in the formation of another element and the release of an alpha particle.

3. Beryllium-9 plus a proton results in the formation of another element and the release of an alpha particle.

4. Einstanium-253 plus an alpha particle results in the formation of another element and the release of a neutron.

5. Lithium-7 plus a proton results in the formation of another element and the release of a neutron.

6. Plutonium-241 plus another particle results in the formation of plutonium-242 and the release of gamma rays.

7. Argon-40 plus an alpha particle produces another element and the release of a neutron.

8. Einstanium-252 was bombarded by a beryllium-9 atom producing a new element and three neutrons.

9. Plutonium-239 can be produced by bombarding uranium-238 with an alpha particle. Some neutrons are released.

10. Uranium-235 is bombarded with a neutron to produce tellurium-137, another element, and two neutrons.

11. On the sun, three steps are needed to create helium from hydrogen (nuclear fusion). In the third step, two helium-3 atoms react to form helium-4 and two hydrogen atoms.

Write a balanced equation for each of the following nuclear reactions:

1. Chlorine-36 decays by beta emission

2. Dubnium-262 decays by alpha emission

3. Krypton-87 decays by beta emission

4. Curium-240 decays by alpha emission

5. Uranium-232 decays by alpha emission

6. Silicon-32 decays by beta emission

7. Zinc-71 decays by beta emission

8. Phophorus-32 decays by beta emission

9. Americium-243 decays by alpha emission

10. Cobalt-60 decays by beta emission

11. Gadolinium-150 decays by alpha emission

12. Lead-210 decays by emitting both a beta and an alpha particles.