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One isotope of oxygen is \(^{16}O\) - Edexcel - A-Level Physics - Question 1 - 2023 - Paper 1

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One isotope of oxygen is \(^{16}O\). Which row of the table shows the number of neutrons and the number of protons in a nucleus of \(^{16}O\)? Number of neutrons | ... show full transcript

Worked Solution & Example Answer:One isotope of oxygen is \(^{16}O\) - Edexcel - A-Level Physics - Question 1 - 2023 - Paper 1

Step 1

Which row of the table shows the number of neutrons and the number of protons in a nucleus of \(^{16}O\)?

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Answer

To determine the number of neutrons and protons in the isotope (^{16}O):

  1. Identify the Mass Number: The mass number of (^{16}O) indicates it has 16 nucleons (protons + neutrons).

  2. Determine the Atomic Number: Oxygen has an atomic number of 8, which means it has 8 protons.

  3. Calculate the Number of Neutrons: Subtract the number of protons from the mass number: Number of Neutrons=Mass NumberNumber of Protons=168=8\text{Number of Neutrons} = \text{Mass Number} - \text{Number of Protons} = 16 - 8 = 8

  4. Find the Correct Option: The correct row that shows 8 neutrons and 8 protons is option C.

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