The designations of a proton and neutron are `""_(1)^(1)H and ""_(0)^(1)n` respectively. Are the two particles of equal mass?

Options

A. Yes, both proton and neutron have the same mass, i.e., 1 amu
B. No, mass numbers reflect actual masses only to the nearest amu. The precise masses of proton and neutron are 1.0072765 and 1.008665 amu
C. None of these
D. none of these

Answer

To determine whether a proton and a neutron have equal mass, we can follow these steps:

### Step 1: Identify the mass of a proton.
The mass of a proton is approximately 1.007276 amu (atomic mass unit).

### Step 2: Identify the mass of a neutron.
The mass of a neutron is approximately 1.008665 amu.

### Step 3: Compare the masses of the proton and neutron.
Now that we have both masses:
- Mass of proton = 1.007276 amu
- Mass of neutron = 1.008665 amu

### Step 4: Conclusion.
Since the mass of a proton (1.007276 amu) is not equal to the mass of a neutron (1.008665 amu), we conclude that the two particles are not of equal mass.

### Final Answer:
No, a proton and a neutron are not of equal mass.

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