Q68 of 181 Page 306

An element A has an atomic number of 6. Another element B has 17 electrons in its one neutral atom.

(a) In which groups of the periodic table would you expect to find these elements?


(b) What type of bond is formed between A and B?


(c) Suggest a formula of the compound formed between A and B.

(a) The element A is present in group 14 and the element B is present in group 17.

(b) Covalent bond is formed between A and B


(c) The formula should be AB4 of this compound.


More from this chapter

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66

The element X forms a compound X2Y. Suggest an element that Y might be and give reasons for your choice.

 67

An element X combines with oxygen to form an oxide XO. This oxide is electrically conducting.

(a) How many electrons would be there in the outermost shell of the element X?


(b) To which group of the periodic table does the element X belong?


(c) Write the formula of the compound formed when X reacts with chlorine.

 69

The elements A, B, C and D belong to groups 1, 2, 14 and 17 respectively of the periodic table. Which of the following pairs of elements would produce a covalent bond?

(i) A and D


(ii) C and D


(iii)A and B


(iv)B and C


(v)A and C

 70

An element X from group 2 reacts with element Y from group 16 of the periodic table.

(a)What is the formula of the compound formed?


(b) What is the nature of bond in the compound formed?