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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

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Section
BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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How many valence electrons does each of the following atoms have?

rubidium, Z = 37 c. aluminum, Z = 13

arsenic, Z = 33 d. nickel, Z = 28

Interpretation Introduction

(a)

Interpretation:

The total number of valence electrons possessed by the given atom is to be stated.

Concept Introduction:

The outermost electrons present in an atom are known as valence electrons. The valence electrons are more loosely held than the electrons which are closer to the nucleus. The valence electrons are most reactive electrons that can participate in the chemical reactions.

Explanation

The electronic configuration of rubidium that has atomic number equal to Z=37 is shown as,

[Kr]5s1

The outermost shell of rubidium is 5s

Interpretation Introduction

(b)

Interpretation:

The total number of valence electrons possessed by the given atom is to be stated.

Concept Introduction:

The outermost electrons present in an atom are known as valence electrons. The valence electrons are more loosely held than the electrons which are closer to the nucleus. The valence electrons are most reactive electrons that can participate in many of the chemical reactions.

Interpretation Introduction

(c)

Interpretation:

The total number of valence electrons possessed by the given atom is to be stated.

Concept Introduction:

The outermost electrons present in an atom are known as valence electrons. The valence electrons are more loosely held than the electrons which are closer to the nucleus. The valence electrons are most reactive electrons that can participate in many of the chemical reactions.

Interpretation Introduction

(d)

Interpretation:

The total number of valence electrons possessed by the given atom is to be stated.

Concept Introduction:

The outermost electrons present in an atom are known as valence electrons. The valence electrons are more loosely held than the electrons which are closer to the nucleus. The valence electrons are most reactive electrons that can participate in many of the chemical reactions.

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