Textbook Question
Write the names for the elements in each of the following formulas of compounds used in medicine:
a. salt substitute, KCl
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Ch.4 Atoms and Elements
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249
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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 12b
Give the symbol of the element described by each of the following:
a. the alkaline earth metal in Period 2
Verified step by step guidance1
Step 1: Understand the periodic table structure. The periodic table is organized into periods (horizontal rows) and groups (vertical columns). Period 2 refers to the second row of the periodic table.
Step 2: Recall the definition of alkaline earth metals. Alkaline earth metals are elements in Group 2 of the periodic table. These elements are characterized by having two valence electrons and include beryllium (Be), magnesium (Mg), calcium (Ca), etc.
Step 3: Identify the element in Period 2 that belongs to Group 2. Locate Period 2 on the periodic table and find the element in Group 2 within that row.
Step 4: Write the symbol of the element. The symbol for the element in Period 2 and Group 2 is 'Be', which stands for beryllium.
Step 5: Verify your answer by checking the periodic table to ensure that beryllium is indeed the alkaline earth metal in Period 2.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Alkaline Earth Metals
Alkaline earth metals are a group of elements found in Group 2 of the periodic table. They are characterized by having two electrons in their outermost shell, which makes them highly reactive, though less so than alkali metals. This group includes elements like beryllium, magnesium, calcium, and others, each exhibiting similar chemical properties.
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Periodic Trend: Metallic Character
Periodic Table
The periodic table is a systematic arrangement of chemical elements, organized by increasing atomic number and grouped by similar properties. Each element is represented by its chemical symbol, and the table is divided into periods (horizontal rows) and groups (vertical columns). Understanding the layout of the periodic table is essential for identifying elements and predicting their behavior.
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02:40Periodic Table: Classifications
Period 2 Elements
Period 2 of the periodic table includes the elements from lithium (Li) to neon (Ne). This period contains a total of eight elements, with increasing atomic numbers and varying properties. The alkaline earth metal in this period is beryllium (Be), which is the second element in Group 2, highlighting its position and characteristics within the broader context of the periodic table.
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Related Practice
Textbook Question
Identify the group or period number described by each of the following:
b. begins with helium
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Textbook Question
Identify each of the following elements as a metal, a nonmetal, or a metalloid:
a. located in Group 2A (2)
2
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Textbook Question
Identify the group or period number described by each of the following:
a. contains C, N, and O
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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 elements as a metal, a nonmetal, or a metalloid:
e. located in Group 8A (18)
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