Textbook Question
Give the symbol of the element described by each of the following:
a. the alkaline earth metal in Period 2
1
views
Ch.4 Atoms and Elements
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249
Not the one you use?Change textbookSelect a different textbook
Table of contents
- Ch.1 Chemistry in Our Lives19
- Ch.2 Chemistry and Measurements80
- Ch.3 Matter and Energy53
- Ch.4 Atoms and Elements58
- Ch.5 Nuclear Chemistry42
- Ch.6 Ionic and Molecular Compounds57
- Ch.7 Chemical Quantities and Reactions38
- Ch.8 Gases30
- Ch.9 Solutions50
- Ch.10 Acids and Bases and Equilibrium64
- Ch.11 Introduction to Organic Chemistry: Hydrocarbons77
- Ch.12 Alcohols, Thiols, Ethers, Aldehydes, and Ketones82
- Ch.13 Carbohydrates54
- Ch.14 Carboxylic Acids, Esters, Amines, and Amides91
- Ch.15 Lipids61
- Ch.16 Amino Acids, Proteins, and Enzymes84
- Ch.17 Nucleic Acids and Protein Synthesis86
- Ch.18 Metabolic Pathways and ATP Production73
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249Not the one you use?Change textbook
Chapter 4, Problem 13e
Identify each of the following elements as a metal, a nonmetal, or a metalloid:
e. located in Group 8A (18)
Verified step by step guidance1
Step 1: Understand the periodic table grouping. Group 8A (or Group 18) is also known as the noble gases. These elements are located in the far-right column of the periodic table.
Step 2: Recall the properties of noble gases. Noble gases are characterized by their lack of reactivity due to having a full valence electron shell. They are nonmetals.
Step 3: Identify the elements in Group 8A. The elements in this group include helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn).
Step 4: Classify the elements. Since all noble gases share similar chemical properties and are nonmetals, each element in Group 8A is classified as a nonmetal.
Step 5: Conclude that any element located in Group 8A (18) is a nonmetal based on its position in the periodic table and its chemical properties.
Verified video answer for a similar problem:
This video solution was recommended by our tutors as helpful for the problem above.
Video duration:
5mWas this helpful?
Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Periodic Table Groups
The periodic table is organized into columns called groups, which categorize elements based on similar chemical properties. Group 8A, also known as Group 18, contains the noble gases, which are characterized by their full valence electron shells, making them largely inert and nonreactive.
Recommended video:
Guided course
05:33
Periodic Table: Group Names
Noble Gases
Noble gases are a group of nonmetals found in Group 8A of the periodic table, including helium, neon, argon, krypton, xenon, and radon. They are known for their lack of reactivity due to having a complete outer electron shell, which makes them stable and unlikely to form chemical bonds.
Recommended video:
Guided course
14:42Test for Anions
Classification of Elements
Elements are classified into three main categories: metals, nonmetals, and metalloids. Metals are typically conductive and malleable, nonmetals are generally poor conductors and more brittle, while metalloids exhibit properties of both. Understanding these classifications helps in identifying the nature of elements in the periodic table.
Recommended video:
Guided course
04:19Classification of Matter
Related Practice
Textbook Question
Identify the group or period number described by each of the following:
b. begins with helium
1
views
Textbook Question
Identify each of the following elements as a metal, a nonmetal, or a metalloid:
a. located in Group 2A (2)
2
views
Textbook Question
Identify the group or period number described by each of the following:
a. contains C, N, and O
1
views
Textbook Question
Juan added the following elements to the soil to improve potato production. Identify the group and period for and classify each as an alkali metal, an alkaline earth metal, a transition element, or a nonmetal:
b. Cu
Textbook Question
Identify each of the following as describing either a proton, a neutron, or an electron:
a. has the smallest mass