Two elements A and B have atomic numbers 11 and 17 respectively. Answer the questions based on the statement given above.
(i) Write the electronic configuration for these elements.
(ii) To which period of the modern periodic table do these two elements belong? Give reason for your answer.
(iii) What type of bond would be formed between them and why?

Explanation

Let's solve the question step by step.

### Step 1: Write the electronic configuration for elements A and B.

**Element A (Atomic Number 11)**:
- The atomic number 11 corresponds to Sodium (Na).
- The electronic configuration can be determined as follows:
- The first shell can hold 2 electrons (1s²).
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