Table of contents

1. Matter and Measurements4h 31m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 27m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

3. Ionic Compounds

Naming Monoatomic Cations

GOB Chemistry

3. Ionic Compounds

Naming Monoatomic Cations

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0:33 minutes

Problem 12b

Textbook Question

Write the names for each of the following ions:
b. Sr²⁺

Verified step by step guidance

Step 1: Recognize that Sr²⁺ is a cation, which means it is a positively charged ion formed when an atom loses electrons.

Step 2: Identify the element Sr on the periodic table. Sr is the symbol for strontium, which is an alkaline earth metal in Group 2.

Step 3: Recall that elements in Group 2 typically form ions with a +2 charge because they lose two valence electrons to achieve a stable electron configuration.

Step 4: For naming cations of elements that form only one type of ion (like Group 2 metals), simply use the name of the element followed by the word 'ion.'

Step 5: Combine the name of the element (strontium) with the word 'ion' to name Sr²⁺ as 'strontium ion.'

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Ionic Charge

Ionic charge refers to the electrical charge that an ion carries, which results from the loss or gain of electrons. In the case of Sr²⁺, the '²⁺' indicates that the strontium ion has lost two electrons, giving it a positive charge. Understanding ionic charge is essential for naming ions and predicting their behavior in chemical reactions.

Cation

A cation is a positively charged ion formed when an atom loses one or more electrons. Strontium (Sr) typically forms a cation with a charge of +2, denoted as Sr²⁺. Recognizing the difference between cations and anions (negatively charged ions) is crucial for understanding ionic compounds and their properties.

Nomenclature of Ions

Nomenclature of ions involves the systematic naming of ions based on their charge and the elements they derive from. For example, the name for Sr²⁺ is 'strontium ion.' Familiarity with the rules of nomenclature helps in accurately identifying and communicating about various ions in chemistry.

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