(1) Which statement about the number of protons and neutrons in a nuclear change is correct?

(A)The total charge before and after the change remains the same, but the total atomic mass is different.

(B)The total atomic mass before and after the change remains the same, but the total charge is different.

(C)The total number of neutrons and the total number of protons are the same before and after the change.

(D)The number of protons and the number of neutrons can differ before and after the change, but the total number of those particles remains the same.

I've gone through all of my lessons and can't seem to locate any about nuclear power; any assistance would be greatly appreciated!

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Hey there! Looks like you need some help with nuclear changes. Don't worry, I can make it fun for you! So, let's break it down:

(A) The total charge before and after the change remains the same, but the total atomic mass is different. Well, protons have positive charge, and neutrons have no charge. So if the charge remains the same, it means the number of protons (positive charge) would need to stay the same. But if the atomic mass is different, it means either the number of protons or neutrons has changed. So, this option doesn't seem quite right.

(B) The total atomic mass before and after the change remains the same, but the total charge is different. Atomic mass is determined by both protons and neutrons, so if the total atomic mass remains the same, it means the number of protons and neutrons must remain the same. But if the total charge is different, it means either the number of protons or neutrons has changed. So, this option doesn't seem quite right either.

(C) The total number of neutrons and the total number of protons are the same before and after the change. Hmm, this option says the number of neutrons and protons is the same before and after the change. It sounds reasonable, but let's check the last option to be sure.

(D) The number of protons and the number of neutrons can differ before and after the change, but the total number of those particles remains the same. Ah, this option says the number of protons and neutrons can change, but the total number remains the same. That means the total atomic mass would stay the same, but the charge would be different. So, this option doesn't seem quite right either.

After going through all the options, it seems like option (C) is correct. The total number of neutrons and the total number of protons are the same before and after the nuclear change. Hope that helps, and don't hesitate to ask if you have any more questions!

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To determine the correct statement about the number of protons and neutrons in a nuclear change, you can use your knowledge of atomic structure and conservation laws. Here's an explanation of how to approach this question:

1. Understand the basic structure of an atom:
- Atoms consist of a nucleus, which contains protons and neutrons, and electrons that orbit the nucleus.
- Protons have a positive charge, neutrons have no charge (neutral), and electrons have a negative charge.

2. Know the concept of nuclear change:
- Nuclear change refers to any alteration in the composition of the atomic nucleus, such as radioactive decay or nuclear reactions.
- During nuclear change, the number of protons or neutrons in the nucleus may change.

3. Apply the principle of conservation of charge and mass:
- The total charge and total atomic mass should be conserved in any nuclear change.
- The law of conservation of charge states that the total charge before and after the change should remain the same.
- The law of conservation of mass states that the total atomic mass (sum of protons and neutrons) should also be conserved.

Now let's apply this understanding to evaluate each statement:

(A) The total charge before and after the change remains the same, but the total atomic mass is different.
- This statement contradicts the conservation of charge but aligns with the conservation of mass. Therefore, it is incorrect.

(B) The total atomic mass before and after the change remains the same, but the total charge is different.
- This statement contradicts the conservation of mass but aligns with the conservation of charge. Therefore, it is incorrect.

(C) The total number of neutrons and the total number of protons are the same before and after the change.
- This statement suggests that there is no change in the number of protons and neutrons during a nuclear change. However, nuclear changes can involve changes in the number of protons or neutrons, so this statement is incorrect.

(D) The number of protons and the number of neutrons can differ before and after the change, but the total number of those particles remains the same.
- This statement acknowledges that the number of protons and neutrons can change during nuclear change, but the total sum of protons and neutrons remains constant. This aligns with the conservation of both charge and mass, making it the correct statement.

Therefore, the correct statement is (D) The number of protons and the number of neutrons can differ before and after the change, but the total number of those particles remains the same.

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