Give the formulae of the chlorides of the elements `X` and `Y` having atomic numbers of `3` and `6` respectively.
Will the properties of the two chlorides be similar or different ? Explain your answer.

Explanation

To solve the question, we need to identify the elements with atomic numbers 3 and 6, determine their chlorides, and analyze the properties of these chlorides.

### Step 1: Identify the Elements
- The element with atomic number 3 is Lithium (Li).
- The element with atomic number 6 is Carbon (C).

### Step 2: Determine the Chlorides
- **For Lithium (Li)**: Lithium forms a chloride by combining with chlorine (Cl). Chlorine has an atomic number of 17, and its electronic configuration shows it needs one more electron to complete its octet. Therefore, Lithium will lose one electron and form a cation (Li⁺), while Chlorine will gain that electron to form an anion (Cl⁻). The formula for the chloride is:
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