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

2. Atoms and the Periodic Table

Periodic Table: Element Symbols

GOB Chemistry

2. Atoms and the Periodic Table

Periodic Table: Element Symbols

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2:43 minutes

Problem 98h

Textbook Question

Write the name and symbol of the element with the following atomic number:
h. 92

Verified step by step guidance

Step 1: Understand the problem. The question asks for the name and symbol of the element with the atomic number 92. The atomic number represents the number of protons in the nucleus of an atom, which uniquely identifies an element on the periodic table.

Step 2: Locate the element on the periodic table. Find the element with an atomic number of 92 by counting or referencing the periodic table.

Step 3: Identify the element. The element with atomic number 92 is uranium, which has the chemical symbol 'U'.

Step 4: Verify your answer. Double-check the periodic table to ensure that uranium corresponds to atomic number 92 and that its symbol is 'U'.

Step 5: Write the final answer. The name of the element is uranium, and its symbol is 'U'.

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Key Concepts

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

Atomic Number

The atomic number of an element is the number of protons found in the nucleus of its atoms. It uniquely identifies an element and determines its position in the periodic table. For example, an atomic number of 92 corresponds to uranium, which has 92 protons.

Element Symbol

An element symbol is a one- or two-letter abbreviation used to represent a chemical element. These symbols are derived from the element's name, often in Latin or Greek. For instance, the symbol for uranium is 'U', which is derived from its name.

Periodic Table

The periodic table is a tabular arrangement of chemical elements organized by increasing atomic number. It provides important information about the elements, including their symbols, atomic weights, and properties. Understanding the periodic table is essential for identifying elements based on their atomic numbers.