Figure 8 is the symbol for a nucleus of americium-241 - Edexcel - GCSE Physics Combined Science - Question 5 - 2023 - Paper 1
Question 5
Figure 8 is the symbol for a nucleus of americium-241.
$$^{241}_{95}Am$$
Figure 8
Americium-241 is a radioactive isotope of americium.
Americium-241 decays by em... show full transcript
Worked Solution & Example Answer:Figure 8 is the symbol for a nucleus of americium-241 - Edexcel - GCSE Physics Combined Science - Question 5 - 2023 - Paper 1
Step 1
Which of these is the symbol for another radioactive isotope of americium?
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Answer
The correct answer is C) 95245Am. This is another isotope of americium.
Step 2
Which of these is the approximate maximum distance that alpha particles can travel in air at normal atmospheric pressure?
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Answer
The correct answer is B) 5 cm. Alpha particles typically travel only a few centimeters in air due to their relatively large mass and charge.
Step 3
Complete the equation in Figure 9 for americium-241 decaying into neptunium (Np).
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Answer
The complete equation is: 95241Am→α+93237Np
This reflects that americium-241 emits an alpha particle and transforms into neptunium-237.
