Question

On the basis of the above table answer the following questions:
1. Name the non-metal with the valency of 3
2. Out of B and C Whose atomic size is bigger and why
3. Write the common name for the family to which the elements D and F belongs to.

Answer 1

Answer:

1.boron

2.B have bigger atomic size compared to C bcz size decrease across the period from left to right and size increase across the group from top to bottom.

3.they are known has noble gases and family name is noble gas family group 18

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