The number of electrons present in of water is ______________.

Options

A. 8
B. 6
C. 10
D. 12

Explanation

To find the number of electrons present in a water molecule (H₂O), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Composition of Water**:
A water molecule (H₂O) consists of 2 hydrogen (H) atoms and 1 oxygen (O) atom.

2. **Determine the Atomic Numbers**:
- The atomic number of hydrogen (H) is 1.
- The atomic number of oxygen (O) is 8.

3. **Calculate the Total Number of Protons**:
- For hydrogen: Since there are 2 hydrogen atoms, the total contribution from hydrogen is:
\[ 2 \times \text{Atomic number of H} = 2 \times 1 = 2 \]
- For oxygen: Since there is 1 oxygen atom, the total contribution from oxygen is:
\[ 1 \times \text{Atomic number of O} = 1 \times 8 = 8 \]

4. **Sum the Total Protons**:
Now, we add the contributions from hydrogen and oxygen:
\[ \text{Total Protons} = 2 + 8 = 10 \]

5. **Determine the Number of Electrons**:
In a neutral molecule, the number of electrons is equal to the number of protons. Therefore, the number of electrons in water is:
\[ \text{Number of Electrons} = \text{Total Protons} = 10 \]

### Final Answer:
The number of electrons present in a water molecule is **10**.

---