(a) Interpretation: Thenumber of elements in fourth period of periodic table is to be stated. Concept Introduction: The elements are made up of atoms. These atoms consist of protons, neutrons and electrons. The electrons revolve around the nucleus in different orbits. The distribution of the electrons in orbit is known as electronic configuration.

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b) Certain cyclic compounds are known to be conformationally similar to carbohydrates, although they are not themselves carbohydrates. One example is Compound C shown below, which could be imagined as adopting four possible conformations. In reality, however, only one of these is particularly stable. Circle the conformation you expect to be the most stable, and provide an explanation to justify your choice. For your explanation to be both convincing and correct, it must contain not only words, but also "cartoon" orbital drawings contrasting the four structures. Compound C Possible conformations (circle one): Дет

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Chapter 2.4, Problem 2.9P

Interpretation Introduction

(a)

Interpretation:

Thenumber of elements in fourth period of periodic table is to be stated.

Concept Introduction:

The elements are made up of atoms. These atoms consist of protons, neutrons and electrons. The electrons revolve around the nucleus in different orbits. The distribution of the electrons in orbit is known as electronic configuration.

Interpretation Introduction

(b)

Interpretation:

The number of elements in group 5A(or 15) of periodic table is to be stated.

Concept Introduction:

The elements are made up of atoms. These atoms consist of protons neutrons and electrons. The electrons revolve around the nucleus in different orbits. The distribution of the electrons in orbit is known as electronic configuration.

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