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CHEM 120 Unit 6 Lab: OL Lab 10: Nuclear Chemistry (GRADED A)
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  • CHEM 120
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  • Chamberlain College Of Nursing

CHEM 120 Unit 6 Lab: OL Lab 10: Nuclear Chemistry Objectives: Identify the differences between chemical reactions and nuclear reactions. Identify the concept of radioactive decay. Identify the n uclear changes associated with alpha, beta or gamma decay. Write the products of nuclear reactions invol...

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  • May 2, 2022
  • 6
  • 2021/2022
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  • chem 120 unit 6 lab ol lab 10 nuclear chemistry graded a

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  • CHEM 120
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CHEM120 OL, Week 6 Lab


OL Lab 10: Nuclear Chemistry
Objectives:
 Identify the differences between chemical reactions and nuclear reactions.
 Identify the concept of radioactive decay.
 Identify the nuclear changes associated with alpha, beta or gamma decay.
 Write the products of nuclear reactions involving alpha, beta or gamma
emissions.
 Explain the concept of half-lives and complete half-life calculations.
Not all atoms are stable. When atoms are born in a nuclear reactor, whether it be the
heart of a star or a power plant, a portion of them are radioactive and are referred to as
radioisotopes. Theseradioisotopes break down over time, releasing energy and
transforming into more stable forms in processes known as radioactive decay.
Depending upon the specific radioisotope, this process can be near instantaneous or
take trillions of years.

In this lab, you will explore radioactive decay as you learn about various types of
radioactivity and half-life.


Complete Table 1 below using the textbook, slides, and other course resources.
Table 1:

Type of radiation Give 1 example of each type.
Ionizing X-rays
Non-ionizing Radio waves
Electromagnetic light (visible, infrared, and ultraviolet)
Particulate beta particles




1
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, CHEM120 OL, Week 6 Lab


Exploration 1: How does alpha, beta, gamma, positron emission or electron
capture affect a nucleus?
Complete Table 2 below.
Table 2:

Radiation type Affect on atomic Effect on number Effect on mass
number of product of protons in number of product
product
Alpha particle Decreases by 2 Loses 2 protons Decreases by 4
Beta particle Increases by 1 Gains 1 proton No change
Gamma No change No change No change
particle
Positron Decreases by 1 Loses 1 proton No change
Electron Decreases by 1 Loses 1 proton No change
capture


1. In the space below, use X for the symbol of an element, Z for the atomic number
and A for the mass number to write a general nuclide symbol.
A
Z X



2. An isotope of strontium has 38 protons and 52 neutrons. What is the nuclide
symbol for an atom of this isotope?
90
38 Sr



3. Write the nuclear equation for the alpha decay of Thorium-232.
232 228 4
90Th  88 Ra + 2 α



4. Write the nuclear equation for the beta decay of fluorine-19.
19
9F  19 10 Ne + −10β −¿



5. Write the nuclear equation for the gamma decay of fluorine-19.
19 m
9F  199F + ᵧ




2
This study source was downloaded by 100000845689434 from CourseHero.com on 05-02-2022 04:30:39 GMT -05:00


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