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Introductory Chemistry: A Foundati...

8th Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781285199030

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BuyFindarrow_forward

Introductory Chemistry: A Foundati...

8th Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781285199030
Chapter 4, Problem 46QAP
Textbook Problem
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Where are the metallic elements found on the periodic table? Are there more metallic elements or nonmetallic elements?

Interpretation Introduction

Interpretation:

The position of metallic elements in the periodic table should be determined. The elements (metallic or non-metallic) more in number should be determined.

Concept Introduction:

Periodic table is arrangement of different elements with the help of columns and rows in order to characterize elements with similar properties in same groups such as alkali metals, alkaline earth metals, halides, noble gases, transition elements etc. In the periodic table, columns represent groups and rows represents periods.

Element:

An element is a simplest type of a pure substance which is composed of only one type of matter. For examples; silver, gold platinum etc.

Metal:

Metals are hard, shiny, malleable, fusible, and ductile. They are good conductor of heat and electricity. They are located to the left of the periodic table.

Metalloid:

Metalloids have properties of both metals and non-metals. They are in the middle of the periodic table.

Non-metal:

A non-metal has no lustre, with poor electrical and thermal conductivity. They are in right side of the periodic table

Valence electron: The electrons which are present in the outer most energy level is known as valence electron. Number of valence electrons can be calculated by the group number of the element. Generally, the group number is same as the valance electrons of any elements.

Explanation of Solution

The characteristic physical properties of the metallic elements are as follows:

  1. Metals are electro-positive in nature.
  2. Generally, metals are hard, shiny, malleable, fusible, and ductile.
  3. Metals showgood electrical and thermal conductivity.
  4. Metals have lustre.
  5. Metals are strong so that show high tensile strength...

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Chapter 4 Solutions

Introductory Chemistry: A Foundation
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