Basics of Nuclear Reactions, its types and examples.

1. Nuclear Reactions
Physical Science
Fernando C. Altares, Jr., SST-1

2. Objectives
(S11/12PSIIIb-12)
1. Identify the different nuclear decay reactions
2. Write the chemical equation of the different nuclear decay reaction
3. Appreciate the importance of radioactive decay
At the end of the lesson, the learners are able to:

3. REVIEW
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A T O M

4. REVIEW
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PARTS OF AN ATOM: SUB ATOMIC PARTICLES
SNORUETN
ROPTSON
RLECERTNOS
PROTONS
NEUTRONS
ELECTRONS
Z
A
XAtomic Number
Mass Number
Element Symbol

5. Z
A
Atomic Number
Mass Number
Element
SymbolX
1
1
H
13
27
Al
82
210
Pb
Z A
1 1
13 27
82 210

6. PICTURE! PICTURE!
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MOTIVATION
RADIATION

7. 7
RADIATION
Radiation is the emission or transmission of
energy in the form of waves or particles
through space or through a material
medium.
This includes: electromagnetic radiation,
such as radio waves, microwaves, infrared,
visible light, ultraviolet, x-rays, and gamma
radiation (γ)
REACTIONS….NUCLEAR REACTIONS!!

8. BREAK-UP GAME!
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ACTIVITY
Group yourselves according to the
instructed number of members given by
the teacher. The game continues until
the least number of members in a
group is reached.

9. α γ
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ALPHA DECAY BETA DECAY GAMMA DECAY
β

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LET’S SEE
𝒁
𝑨
𝑿 → 𝒁−𝟐
𝑨−𝟒
𝒀 + 𝟐
𝟒
𝜶
ALPHA
PARTICLE
HELIUM
NUCLEUS
POSITIVE
ALPHA DECAY
α He +

12. 12
LET’S SEE
𝒁
𝑨
𝑿 → 𝒁+𝟏
𝑨
𝒀 + −𝟏
𝟎
𝜷
BETA
PARTICLE
ELECTRON NEGATIVE
BETA DECAY
β e -

14. 14
LET’S SEE
𝒁
𝑨
𝑿 → 𝒁+𝟏
𝑨
𝒀 + −𝟏
𝟎
𝜷 + γ
GAMMA
RADIATION
ALPHA BETA
GAMMA DECAY
γ α β
Gamma radiations are emitted in the form of electromagnetic energy during an alpha or beta
decay process. These radiations are pretty high frequency radiations e.g. X-rays.
𝒁
𝑨
𝑿 → 𝒁−𝟐
𝑨−𝟒
𝒀 + 𝟐
𝟒
𝜶 + γ

15. RADIOACTIVE DECAY CHAIN
15
WORKSHEET
STAR
T
FINIS
H
A series of transformation by which an unstable atomic nucleus
loses energy by emitting radiation, such as an alpha particle, beta
particle, or a gamma ray to achieve stability.

16. SUMMARY
16
THREE BASIC TYPES OF NUCLEAR DECAY REACTION
ALPHA BETA
No error vocibus
fabellas sea. Vel id
gubergren maiestatis
dissentiet. Ius ei oratio
platonem, ex usu
modus dicit deseruisse.
GAMMA
Labore iuvaret
probatus eam te. Enim
concludaturque no quo.
Latine nostrud per ad.
Vix ei quem labores, in
sed convenire facilisis.
Aliquip mentitum est id, vis nostro democritum ea. Ea ornatus efficiendi eos, his erant
conclusionemque cu. Id qui viris contentiones, mea dicam percipit no.
Oblique efficiendi sed ex, vim dolorem erroribus ad, te veri lucilius mel.

17. SHORT QUIZ
ASSESSMENT
I. Given the equation identify what type of radioactive decay it falls.
1. 𝟗𝟐
𝟐𝟑𝟖
𝑼 → 𝟗𝟎
𝟐𝟑𝟒
𝑻𝒉 + 𝟐
𝟒
𝜶
2. 𝟓𝟑
𝟏𝟑𝟏
𝑰 → 𝟓𝟒
𝟏𝟑𝟏
𝑿𝒆 + −𝟏
𝟎
𝜷
II. Write the balanced equation for the following:
1.Beta decay of 𝟐𝟔
𝟓𝟐
𝑭𝒆
2. Alpha decay of 𝟗𝟐
𝟐𝟒𝟐
𝑷𝒖