Radioactivity and Decay

The quiz is a brief overview of the information that was covered in September. It is not very challenging so you should score above 85%. Study chapter 3 and 4 of the textbook and you should do just fine.

If you score less than 85% you need to go back and review the material. You will have a second attempt to improve your score. If you still score below 85% after two attempts make an appointment to see me.

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Under 18 Years Old
18 to 24 Years Old
25 to 30 Years Old
31 to 40 Years Old
41 to 50 Years Old
51 to 60 Years Old
Over 60 Years Old
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Male
Female
1. What is the atomic number of Hydrogen?
0
1
-1
2
2. How many neutrons does an element have if its atomic number is 14 and its atomic mass is 26?
12
14
26
40
3. What is an isotope?
An element with an unstable nucleus.
An element that has several forms with different number of neutrons.
An element that undergoes Alpha decay.
An element with a geometric atomic structure.
4. An alpha particle:
has a positive charge.
has a negative charge.
has no charge.
5. The electron volt:
measures voltage.
measures energy.
measures power.
measures charge.
6. What is the charge of an ion if the neutral atom became ionized by losing 2 electrons?
2+
2-
7. The K shell of an atom contains:
2 electrons
8 electrons
2 protons
8 protons
8. A radioactive material with a mass number of 235 decays by releasing an Alpha particle. Which of the following is true?
the mass number changes tp 231
the mass number changes to 233
the mass number remains the same
9. A radioactive atom releases a Beta particle, which of the following apply?
the atom becomes ionized.
the atomic mass increases.
the atomic number increases.
both 1 and 2 apply
both 2 and 3 apply
10. Which of he following has the highest mass?
an electron
a neutron
a proton
a photon

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