Chapter 5

Question 1

1. How is the Periodic Law reflected in the molar volume, density, first ionization energy and electronegativity of the elements?

Answer 1

Question 2

2. What are diagonal relationships in the periodic table? Demonstrate by similarities in chemical properties that a diagonal relationship exists between lithium and magnesium.

Answer 2

Question 3

3. What is the ‘Knight’s Move’ relationship in the periodic table?

Answer 3

Question 4

4. Discuss the similarities between group N and group (N +10) elements.

Answer 4

Question 5

5. What are the main differences in properties between atoms belonging to the same row of the Periodic Table, but connected by the N – (N + 10) relationship? How are these differences in atomic properties reflected in the chemical properties of these elements?

Answer 5

Question 6

6. What trends can be observed for valencies and oxidation states of elements across a period? Wat is the difference between ‘valency’ and ‘oxidation state’?

Answer 6