BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

Solutions

Chapter
Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Give the periodic group number and number of valence electrons for each of the following atoms.

  1. (a) O
  2. (b) B
  3. (c) Na
  4. (d) Mg
  5. (e) F
  6. (f) S

(a)

Interpretation Introduction

Interpretation: The periodic group number and number of valence electron for the given atom should be identified.

Concept Introduction:

Periodic Table: The available chemical elements are arranged considering their atomic number, the electronic configuration and their properties. The elements placed on the left of the table are metals and non-metals are placed on right side of the table.

In periodic table the horizontal rows are called periods and the vertical column are called group.

There are seven periods and 18 groups present in the table and some of those groups are given special name as follows,

Group-1Alkali metalGroup-2Alkaline metalsGroup-16ChalcogensGroup-17HalogensGroup-18Noble gases

Valence electron: The electron is considered as valence electron if it present in outermost shell of atom which gets involved in the formation of chemical bond.

Answer

Oxygen (O) atom belongs to Group 6A and carrying six valence electrons.

Explanation

Oxygen (O) atom belongs to Group 6A so it must be carrying six valence electrons.

(b)

Interpretation Introduction

Interpretation: The periodic group number and number of valence electron for the given atom should be identified.

Concept Introduction:

Periodic Table: The available chemical elements are arranged considering their atomic number, the electronic configuration and their properties.  The elements placed on the left of the table are metals and non-metals are placed on right side of the table.

In periodic table the horizontal rows are called periods and the vertical column are called group.

There are seven periods and 18 groups present in the table and some of those groups are given special name as follows,

Group-1Alkali metalGroup-2Alkaline metalsGroup-16ChalcogensGroup-17HalogensGroup-18Noble gases

Valence electron: The electron is considered as valence electron if it present in outermost shell of atom which gets involved in the formation of chemical bond.

Answer

Boron (B) atom belongs to Group 3A so it must be carrying three valence electrons.

Explanation

Boron (B) atom belongs to Group 3A so it must be carrying three valence electrons.

(c)

Interpretation Introduction

Interpretation: The periodic group number and number of valence electron for the given atom should be identified.

Concept Introduction:

Periodic Table: The available chemical elements are arranged considering their atomic number, the electronic configuration and their properties. The elements placed on the left of the table are metals and non-metals are placed on right side of the table.

In periodic table the horizontal rows are called periods and the vertical column are called group.

There are seven periods and 18 groups present in the table and some of those groups are given special name as follows,

Group-1Alkali metalGroup-2Alkaline metalsGroup-16ChalcogensGroup-17HalogensGroup-18Noble gases

Valence electron: The electron is considered as valence electron if it present in outermost shell of atom which gets involved in the formation of chemical bond.

Answer

Sodium (Na) atom belongs to Group 1A so it must be carrying one valence electron.

Explanation

Sodium (Na) atom belongs to Group 1A so it must be carrying one valence electron.

(d)

Interpretation Introduction

Interpretation: The periodic group number and number of valence electron for the given atom should be identified.

Concept Introduction:

Periodic Table: The available chemical elements are arranged considering their atomic number, the electronic configuration and their properties. The elements placed on the left of the table are metals and non-metals are placed on right side of the table.

In periodic table the horizontal rows are called periods and the vertical column are called group.

There are seven periods and 18 groups present in the table and some of those groups are given special name as follows,

Group-1Alkali metalGroup-2Alkaline metalsGroup-16ChalcogensGroup-17HalogensGroup-18Noble gases

Valence electron: The electron is considered as valence electron if it present in outermost shell of atom which gets involved in the formation of chemical bond.

Answer

Magnesium (Mg) atom belongs to Group 2A so it must be carrying two valence electrons.

Explanation

Magnesium (Mg) atom belongs to Group 2A so it must be carrying two valence electrons.

(e)

Interpretation Introduction

Interpretation: The periodic group number and number of valence electron for the given atom should be identified.

Concept Introduction:

Periodic Table: The available chemical elements are arranged considering their atomic number, the electronic configuration and their properties. The elements placed on the left of the table are metals and non-metals are placed on right side of the table.

In periodic table the horizontal rows are called periods and the vertical column are called group.

There are seven periods and 18 groups present in the table and some of those groups are given special name as follows,

Group-1Alkali metalGroup-2Alkaline metalsGroup-16ChalcogensGroup-17HalogensGroup-18Noble gases

Valence electron: The electron is considered as valence electron if it present in outermost shell of atom which gets involved in the formation of chemical bond.

Answer

Fluorine (F) atom belongs to Group 7A so it must be carrying seven valence electrons

Explanation

Fluorine (F) atom belongs to Group 7A so it must be carrying seven valence electrons

(f)

Interpretation Introduction

Interpretation: The periodic group number and number of valence electron for the given atom should be identified.

Concept Introduction:

Periodic Table: The available chemical elements are arranged considering their atomic number, the electronic configuration and their properties. The elements placed on the left of the table are metals and non-metals are placed on right side of the table.

In periodic table the horizontal rows are called periods and the vertical column are called group.

There are seven periods and 18 groups present in the table and some of those groups are given special name as follows,

Group-1Alkali metalGroup-2Alkaline metalsGroup-16ChalcogensGroup-17HalogensGroup-18Noble gases

Valence electron: The electron is considered as valence electron if it present in outermost shell of atom which gets involved in the formation of chemical bond.

Answer

Sulphur(S) atom belongs to Group 6A so it must be carrying six valence electrons.

Explanation

Sulphur (S) atom belongs to Group 6A so it must be carrying six valence electrons.

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

The Academy of Nutrition and Dietetics recommends fluoride-free water for the U.S. population. T F

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

In the following diagram, designate each daughter cell as diploid (2n) or haploid (n).

Human Heredity: Principles and Issues (MindTap Course List)

Find all the answers to your study problems with bartleby.
Textbook solutions plus Q&A. Get As ASAP arrow_forward