Lesson 6.4.2.2
6.4.2.2 Nuclear equations Quiz: AQA Combined Science, Unit 21
20 questions
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Lesson 6.4.2.2, Nuclear equations: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 21: Atomic structure, written with Revision Ninja.
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The 20 questions
-
Which numbers must balance in a nuclear equation?
- Neutrons and charge
- Activity and count-rate
- Protons and electrons
- Mass and atomic
-
What are the mass and atomic numbers of a beta particle?
- Mass 1, atomic 1
- Mass 0, atomic -1
- Mass 4, atomic 2
- Mass 0, atomic 0
-
Alpha decay causes the mass number of the nucleus to do what?
- Decrease by 4.
- Decrease by 2.
- Stay the same.
- Increase by 4.
-
Alpha decay causes the atomic number of the nucleus to do what?
- Stay the same.
- Increase by 2.
- Decrease by 2.
- Decrease by 4.
-
Beta decay causes the mass number of the nucleus to do what?
- Decrease by 4.
- Stay the same.
- Decrease by 1.
- Increase by 1.
-
Beta decay causes the atomic number of the nucleus to do what?
- Increase by 1.
- Decrease by 1.
- Stay the same.
- Increase by 2.
-
Which nuclear property is altered by gamma emission?
- None
- Mass number
- Neutron number
- Atomic number
-
What must be balanced on each side of a single nuclear decay equation?
- Neutron-proton ratio
- Mass and atomic numbers
- Daughter element symbols
- Total number of atoms
-
A nucleus with mass number 238 and atomic number 92 emits an alpha particle. What is the new mass number?
- 236
- 238
- 242
- 234
-
The same nucleus of mass number 238 and atomic number 92 emits an alpha particle. What is the new atomic number?
- 92
- 88
- 90
- 94
-
A nucleus with mass number 14 and atomic number 6 emits a beta particle. What are its new mass number and atomic number?
- 12 and 6
- 10 and 4
- 14 and 7
- 14 and 5
-
In alpha decay of a nucleus with mass number A and atomic number Z, what are the new values?
- A - 4 and Z - 2
- A + 4 and Z + 2
- A and Z unchanged
- A - 2 and Z - 4
-
A nucleus with mass number 40 and atomic number 19 emits a beta particle. What are the new mass and atomic numbers?
- 36 and 18
- 40 and 18
- 39 and 20
- 40 and 20
-
A nucleus with mass number 210 and atomic number 84 emits an alpha particle. What is the new mass number?
- 214
- 208
- 210
- 206
-
A nucleus with mass number 60 and atomic number 27 emits a beta particle. What is the new atomic number?
- 27
- 29
- 28
- 26
-
A nucleus with mass number 226 and atomic number 88 emits an alpha particle. What is the new atomic number?
- 90
- 86
- 84
- 88
-
Why does alpha decay reduce nuclear charge?
- Two protons leave
- Neutrons are gained
- Electrons are added
- Energy is absorbed
-
Which nuclear change occurs during beta-minus decay?
- Electron becomes positron
- Nucleus loses mass
- Neutron becomes proton
- Proton becomes neutron
-
A nucleus of mass number 210 emits an alpha particle and then a beta particle. What is the final mass number?
- 214
- 206
- 210
- 202
-
A nucleus with mass number 222 and atomic number 86 emits an alpha particle and then a beta particle. What is the final atomic number?
- 85
- 84
- 86
- 88
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