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 Anions

GOB Chemistry

3. Ionic Compounds

Naming Monoatomic Anions

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0:50 minutes

Problem 11d

Textbook Question

Write the names for each of the following ions:
d. P^3-

Verified step by step guidance

Step 1: Recognize that the ion is a negatively charged ion (anion) because of the superscript '³⁻', which indicates a charge of -3.

Step 2: Identify the element symbol 'P' as phosphorus from the periodic table.

Step 3: Recall that when naming anions, the ending of the element's name is replaced with '-ide'. For phosphorus, the name changes to 'phosphide'.

Step 4: Combine the modified name with the charge information to confirm the name of the ion. The charge is not explicitly stated in the name of the ion, so the name is simply 'phosphide'.

Step 5: Conclude that the name of the ion P³⁻ is 'phosphide'.

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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 is determined by the loss or gain of electrons. In the case of P³⁻, the negative charge indicates that the phosphorus atom has gained three electrons, resulting in a total of five electrons in its outer shell, which is crucial for understanding its reactivity and bonding behavior.

Phosphide Ion

The P³⁻ ion is known as the phosphide ion. It is formed when phosphorus gains three electrons, leading to a stable electron configuration. Phosphide ions are typically found in ionic compounds, where they bond with metals, and they play a significant role in various chemical reactions and materials.

Naming Ions

Naming ions involves using specific conventions based on their charge and the element they represent. For anions like P³⁻, the name is derived from the element's name with the suffix '-ide' added, resulting in 'phosphide.' This systematic approach helps in identifying and categorizing ions in chemical formulas and reactions.

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