The valid pairs of contributing structures has to be identified. Concept introduction: The outer most shell of the element is called as valence shell. The electrons present in the outer shell are called valence electron. For example: Nitrogen element has seven electrons and it has two shells, the second shell is the valence shell and it has five electrons in the valence shell. The five electrons are called as valence electrons. The number of valence electron of carbon is four, number of valence electron of oxygen is six, number of valence electron of nitrogen is five and the number of valence electron of hydrogen is one. Resonance: The delocalization of electrons which is characterized as several structural changes.

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Learning Goal: This question reviews the format for writing an element's written symbol. Recall that written symbols have a particular format. Written symbols use a form like this: 35 Cl 17 In this form the mass number, 35, is a stacked superscript. The atomic number, 17, is a stacked subscript. "CI" is the chemical symbol for the element chlorine. A general way to show this form is: It is also correct to write symbols by leaving off the atomic number, as in the following form: atomic number mass number Symbol 35 Cl or mass number Symbol This is because if you write the element symbol, such as Cl, you know the atomic number is 17 from that symbol. Remember that the atomic number, or number of protons in the nucleus, is what defines the element. Thus, if 17 protons are in the nucleus, the element can only be chlorine. Sometimes you will only see 35 C1, where the atomic number is not written. Watch this video to review the format for written symbols. In the following table each column…

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Question

Chapter 1.8, Problem 1.17P

Interpretation Introduction

Interpretation:

The valid pairs of contributing structures has to be identified.

Concept introduction:

The outer most shell of the element is called as valence shell. The electrons present in the outer shell are called valence electron.

For example:

Nitrogen element has seven electrons and it has two shells, the second shell is the valence shell and it has five electrons in the valence shell. The five electrons are called as valence electrons.

The number of valence electron of carbon is four, number of valence electron of oxygen is six, number of valence electron of nitrogen is five and the number of valence electron of hydrogen is one.

Resonance: The delocalization of electrons which is characterized as several structural changes.

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Learning Goal: This question reviews the format for writing an element's written symbol. Recall that written symbols have a particular format. Written symbols use a form like this: 35 Cl 17 In this form the mass number, 35, is a stacked superscript. The atomic number, 17, is a stacked subscript. "CI" is the chemical symbol for the element chlorine. A general way to show this form is: It is also correct to write symbols by leaving off the atomic number, as in the following form: atomic number mass number Symbol 35 Cl or mass number Symbol This is because if you write the element symbol, such as Cl, you know the atomic number is 17 from that symbol. Remember that the atomic number, or number of protons in the nucleus, is what defines the element. Thus, if 17 protons are in the nucleus, the element can only be chlorine. Sometimes you will only see 35 C1, where the atomic number is not written. Watch this video to review the format for written symbols. In the following table each column…

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