Use the information in the table above to answer the questions that follow

​a) i) Are the members in this group likely to be conductor or non – conductors? (1mk)

ii) Which element would have the lowest atomic number? Explain. (1mk)

​b) The grid below represents part of the periodic table. Study it and answer the questions that follow. (The letters are not the actual symbols of the elements)

b) The grid above represents part of the periodic table. Study it and answer the questions that follow. (The letters are not the actual symbols of the elements)

​i) Select the element in period three which has the shortest atomic radius. Give a reason for your answer. (2mks)

​ii) Using dots (•) and crosses (x) to represent outermost electrons, draw a diagram to show the bonding in the compound formed when chlorine reacts with element X (1mk)

½mk @ x 2 = 1mk Penalize fully if dots or crosses alone are used

​iii) When three liters of chlorine gas were completely reacted with element Y, 11.85g of the product were formed. Calculate the relative atomic mass of element Y. (3mks)

​(R.A.M of chlorine = 35.5, molar gas volume = 24 liters)