Semester Exam Final Review Practice Problems
I have 38 g of Zn. How many atoms is this?
I have 3.89x1024 atoms of Au. What is the mass of this sample?
I have captured 250 ml of CO2 gas @ STP. How many moles is this?
I have ob
When beta emission occurs the atomic number increases by 1
This has no effect on the mass number.
Other useful particles
There are 1500 + manmade isotopes. These are typically made by bombardment
Radon (Rn) is the heaviest of the noble gases.
It is formed when Uranium decays.
It gets into houses from cracks in their foundation. This gets worse as we
insulate our homes better and better as the air is not exchanged regularly.
Fixes include sealing f
Fission vs Fusion
Fission is the splitting of large atoms into smaller atoms.
Accompanied by large release of energy.
Byproducts tend to be highly radioactive.
Used in Atomic bombs-usually splitting U or Pu
Fusion is the combinin
Properties of Radiation
Attracted to negative charge, has a +2 charge
Have a high mass
Is a Helium nucleus
Commonly emitted from large nuclei
Stopped by a sheet of paper
Attracted to a positive charge, has a -1 charge
N i rtn
75 00O c*l
'4trv Tunu fiqq
i, cfw_onrt r,
d e tf
FON TEACHER USE ONLY
(Us tgble blo*')
Record all of your answers on this snswer sheet in accordance
with the instructions on the front page of the
Chapter 18 Short Unit
In this unit you will take your own notes on the brief lectures and the sections in
Develop your own shorthand-do not copy everything.
We will have a quiz on _.
You may use your OWN handwritten notes on the quiz.