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)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)
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)
0 Comments
An element Y has the electronic configuration 2.8.5
|
Chemistry Topics
All
Archives
December 2024
|
Primary Resources
College Resources
Can't find what you want? Use this Search box. |
Secondary Resources
|
Contact Us
Manyam Franchise
P.O Box 1189 - 40200 Kisii Tel: 0728 450 424 Tel: 0738 619 279 E-mail - sales@manyamfranchise.com |