The valence electron configuration for the Group 5 A elements is to be stated. The examples that illustrate the difference between metallic characteristics of Bi , Sb and N , P, As are to be stated. The reason for the fact, elemental nitrogen exists as N 2 , whereas in the gas phase the elements phosphorus, arsenic, and antimony consist of P 4 , As 4 , and Sb 4 molecules is to be stated. The explanation of the fact, white phosphorus is much more reactive than black or red phosphorus. Concept introduction: Group 5 A elements are highly reactive. They form covalent bonds when react with non-metals. To determine: The valence electron configuration for the Group 5 A elements; the examples that illustrates the difference between metallic characteristics of Bi , Sb and N , P, As ; the reason for the fact ‘Elemental nitrogen exists as N 2 , whereas in the gas phase the elements phosphorus, arsenic, and antimony consist of P 4 , As 4 , and Sb 4 molecules’; the explanation for the fact, white phosphorus is much more reactive than black or red phosphorus.

Question

The melting points of alkaline earth metals are many times higher than those of the alkali metals. Explain this difference on the basis of atomic properties. Name three other physical properties for which Group 2A(2) metals have higher values than the corresponding 1A(1) metals

Answer 1

Question

Chapter 20, Problem 6RQ

Interpretation Introduction

Interpretation: The valence electron configuration for the Group 5 A elements is to be stated. The examples that illustrate the difference between metallic characteristics of Bi,Sb and N,P, As are to be stated. The reason for the fact, elemental nitrogen exists as N2 , whereas in the gas phase the elements phosphorus, arsenic, and antimony consist of P4 , As4 , and Sb4 molecules is to be stated. The explanation of the fact, white phosphorus is much more reactive than black or red phosphorus.

Concept introduction: Group 5 A elements are highly reactive. They form covalent bonds when react with non-metals.

To determine: The valence electron configuration for the Group 5 A elements; the examples that illustrates the difference between metallic characteristics of Bi,Sb and N,P, As ; the reason for the fact ‘Elemental nitrogen exists as N2 , whereas in the gas phase the elements phosphorus, arsenic, and antimony consist of P4 , As4 , and Sb4 molecules’; the explanation for the fact, white phosphorus is much more reactive than black or red phosphorus.

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