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Students are completing a table about a particular subatomic particle that helps make up an atom.
\begin{tabular}{|l|l|l|}
\hline Mass (amu) & Location & Charge \\
\hline [tex]$1 / 2,000$[/tex] & & Has a charge \\
\hline
\end{tabular}

What best explains how they should complete the table?

A. with "Inside the nucleus," because the particle is a proton

B. with "Inside the nucleus," because the particle is a neutron

C. with "Outside of the nucleus," because the particle is a proton

D. with "Outside of the nucleus," because the particle is an electron


Sagot :

Let's analyze the characteristics provided in the partial table and match them to the correct subatomic particle.

1. Mass (amu): The mass of the particle is approximately [tex]\( \frac{1}{2000} \)[/tex] atomic mass units (amu).
2. Charge: The particle has a charge.

Given these points:

- We know that the mass of an electron is very small, approximately [tex]\( \frac{1}{2000} \)[/tex] the mass of a proton.
- Electrons also have a negative charge.
- Electrons are located outside the nucleus.

Now, let's review the options:

1. "Inside the nucleus," because the particle is a proton:
- Protons are inside the nucleus.
- However, the mass of a proton is 1 amu, not [tex]\( \frac{1}{2000} \)[/tex] amu, making this option incorrect.

2. "Inside the nucleus," because the particle is a neutron:
- Neutrons are inside the nucleus.
- Neutrons have no charge (neutral), and their mass is approximately 1 amu. Thus, this option does not match the charge and mass criteria.

3. "Outside of the nucleus," because the particle is a proton:
- Protons are inside the nucleus, not outside.
- Also, as mentioned, the mass of a proton is not [tex]\( \frac{1}{2000} \)[/tex] amu, so this option is incorrect.

4. "Outside of the nucleus," because the particle is an electron:
- Electrons are indeed located outside the nucleus.
- They have a very small mass, approximately [tex]\( \frac{1}{2000} \)[/tex] amu, which matches the given mass.
- Electrons also have a charge (negative charge), matching the charge mentioned in the table.

Therefore, based on the characteristics provided (mass of [tex]\( \frac{1}{2000} \)[/tex] amu and having a charge), the correct completion of the table is:

- Mass (amu): [tex]\( \frac{1}{2000} \)[/tex]
- Location: Outside of the nucleus
- Charge: Has a charge

Thus, the correct explanation is:

"Outside of the nucleus," because the particle is an electron.
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