Mass of proton is

Options

A. 1.0000 amu
B. 1.0073 amu
C. 0.9073 amu
D. `5.486xx10^(-4)` amu

Answer

To determine the mass of a proton, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the mass of a proton in atomic mass units (amu)**:
- The mass of a proton is given as approximately **1.0073 amu**.

2. **Understand the conversion factor from amu to kilograms**:
- We know that **1 amu** is equivalent to **1.67 × 10^(-27) kg**.

3. **Calculate the mass of the proton in kilograms**:
- To convert the mass of the proton from amu to kg, we multiply the mass in amu by the conversion factor:
\[ \text{Mass of proton in kg} = 1.0073 \, \text{amu} \times 1.67 \times 10^{-27} \, \text{kg/amu} \]

4. **Perform the multiplication**:
- Calculate:
\[ \text{Mass of proton in kg} = 1.0073 \times 1.67 \times 10^{-27} \]
- This results in:
\[ \text{Mass of proton in kg} \approx 1.68 \times 10^{-27} \, \text{kg} \]

5. **Final result**:
- Therefore, the mass of a proton is approximately **1.68 × 10^(-27) kg**.

### Summary:
The mass of a proton is approximately **1.0073 amu**, which converts to about **1.68 × 10^(-27) kg**.

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