Draw the electron dot diagram for the compounds given below. Represent the electrons by (.) and (x) in the diagram : [Atomic No. Ca = 20, O = 8, Cl = 17, H = 1]
Calcium oxide

Explanation

To draw the electron dot diagram for calcium oxide (CaO), we will follow these steps:

### Step 1: Identify the valence electrons
- Calcium (Ca) has an atomic number of 20, which means it has 2 electrons in its outermost shell (valence shell).
- Oxygen (O) has an atomic number of 8, which means it has 6 electrons in its valence shell.

### Step 2: Write the electron configuration
- For calcium, the electron configuration is:
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