Name____________________
Date___________Per_____A#__
Ch. 4 Review
1. Differentiate between the different
atom models and who discovered what
about atoms
2. Uranium – 245 undergoes alpha
decay. Write the complete nuclear
equation showing this transmission.
3. Identify the missing term in the
following nuclear equation and fill in all
details:
4. What is the difference between
nuclear fusion and nuclear fission?
_____ → 239 Np + 4He
What kind of radiation is this?
5. What is the difference between
alpha, beta, and gamma radiation?
6. In the ion Zn3+, how many electrons,
protons and neutrons are there?
7. Write all of the isotopes in both
notations for iodine, starting at atomic
mass of 127 and going to atomic mass
of 130.
8. What isotope has an atomic mass of
14, 6 protons and 10 electrons? (write
in both notations)
9. Write your own nuclear equation for
each type of radiation.
10. Nitrogen has two naturally
occurring isotopes. Nitrogen-14 has an
abundance of 51.82% and a mass of
14.007 amu. Nitrogen-16 has a relative
abundance of 48.18% and a mass of
16.230 amu. Calculate the average
atomic mass of nitrogen.
11. Iodine has three naturally occurring
isotopes, I-126, I-127 and I-128. Iodine127 has an abundance of 15.8% and
mass of 127.236amu. Iodine-128 has an
abundance of 4.00% and a mass of
128.362 amu. Iodine-126 has an
abundance of 80.2% and mass of
126.774amu. Calculate the atomic
mass of Iodine.
12. Barium-140 undergoes beta decay.
Write the complete nuclear equation
showing this transmission
13. Create your own problem for an ion
and determining number of subatomic
particles.
140
Ba → ________ + ___________