(i) Write the name of the element which is diagonally related to the element beryllium. (ii) Three element A, B and C have atomic numbers 11, 14 and 17 respectively. State the blocks in periodic table in which elements A and C belong to. Write the formulas of the compound formed between B and C and A and C. state the nature of the bonds.

(i) Write the name of the element which is diagonally related to the e

1.	(i) Write the name of the element which is diagonally related to the element beryllium. (ii) Three element A, B and C have atomic numbers 11, 14 and 17 respectively. State the blocks in periodic table in which elements A and C belong to. Write the formulas of the compound formed between B and C and A and C. state the nature of the bonds.
Answer» Solution :(i) Aluminium (Al). (ii) `""_(A):1s^(2)2s^(2)2P^(6)3s^(1),""_(14)B:1s^(2)2s^(2)2p^(6)3s^(2)3p^(2)` `""_(17)C:1s^(2)2s^(2)2p^(6)3s^(2)3p^(5)` From the electronic configuration it is EVIDENT that Ais s-block element whereas C is p-block element. the compound formed between B and C has the formula `BC_(4)` and the nature of bond is covalent. compound formed by COMBINATION of A and C is AC (electrovalent).