The mass of neutron is nearly

Options

A. `10^(-23)kg`
B. `10^(-24)kg`
C. `10^(-26)kg`
D. `10^(-27)kg`

Explanation

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

### Step 1: Understand the mass of a neutron
The mass of a neutron is a fundamental property of this subatomic particle. It is important to know the approximate value for various calculations in chemistry and physics.

### Step 2: Recall the mass of a neutron
The mass of a neutron is approximately given as:
\[ 1.675 \times 10^{-27} \, \text{kg} \]

### Step 3: Round the mass to the nearest order of magnitude
In scientific notation, the mass of a neutron can be approximated to the nearest order of magnitude. The value \(1.675 \times 10^{-27} \, \text{kg}\) is very close to \(10^{-27} \, \text{kg}\).

### Step 4: Identify the correct option
Given the options provided in the question, we need to select the one that matches our calculated value. Since \(1.675 \times 10^{-27} \, \text{kg}\) rounds to \(10^{-27} \, \text{kg}\), we can conclude that the correct option is:
- **Option 4: \(10^{-27} \, \text{kg}\)**

### Final Answer:
The mass of a neutron is nearly \(10^{-27} \, \text{kg}\).

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