About This Chapter
Elements in the Universe - Chapter Summary
In this chapter on elements in the universe, engaging lessons will explore the idea that humans are made of recycled material. You can also improve your understanding of what electrons, protons, and neutrons are made of. After going through the lessons, you should be able to do the following:
- Explain cosmic recycling
- Discuss how we know what elements are in the universe
- Compare elements on Earth and in the human body
- List the ten most common elements in the universe
- Define and discuss different types of radioactive decay
A short quiz is available to test your knowledge of each lesson, and the quizzes can be printed. The quizzes link back to specific topics in the video, so if you get a question wrong you can quickly review that particular topic. You can also submit questions to our instructors if you need help understanding what you've studied.
1. Cosmic Recycling: From Stellar Death to Human Life
Did you know that you are related to the stars you see in the sky? Did you know that you're made of recycled material? This lesson will tell you how and why.
2. Evidence of Atoms & Elements
In this lesson, we discuss evidence for the existence of atoms, the elements, and subatomic particles here on earth. We will also talk about how we know about the elements' broader existence in the cosmos.
3. Comparing Elements on Earth to Those in the Human Body
In this lesson, you will learn how the abundance of elements on Earth compares to the abundance of elements inside the human body. A brief discussion of where the elements can be found in the body and on Earth will also be included.
4. Comparing Elements in the Universe to Those on Earth
The periodic table of elements contains all of the known elements in the universe. In this lesson, we'll discuss the most common elements in the universe versus the most common elements on Earth.
5. Radioactive Decay: Definition, Formula & Types
In this lesson, we'll discuss radioactive decay and learn the terms parent nucleus, daughter nucleus, and half-life. We'll also examine three types of radioactive decay.
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Other chapters within the VCE Chemistry: Exam Prep & Study Guide course
- Steps of the Scientific Method
- Designing Scientific Experiments
- Procedures of Scientific Investigation
- Lab & Science Safety
- Drawing Conclusions & Communicating Scientific Ideas
- Atoms & Atomic Structure
- Understanding Elements & Periodicity
- Block & Group Elements
- Metals in Chemistry
- Ionic Compounds
- Quantifying Atoms
- Materials From Molecules
- Carbon Lattices & Nanomaterials
- Properties of Organic Compounds
- Polymer Basics
- Alchemy, Chemistry & the Periodic Table
- Lanthanoids & Actinoids
- Using Light to Solve Chemical Puzzles
- Properties of Glass
- Crude Oil & the Environment
- Polymers, Composite Materials & Nanomaterials
- Properties of Water in Chemistry
- Acid-Base Reactions
- Redox Reactions
- Water Sample Analysis
- Measurement of Solubility & Concentration
- Analysis for Salts in Water
- Organic Compounds in Water
- Acids & Bases in Water
- Fuel Choices
- Energy From Fuels
- Fuel Cells & Galvanic Cells
- Rate & Extent of Chemical Changes
- Production of Chemicals by Electrolysis
- Analyzing Organic Compounds
- Key Food Molecules
- Metabolism in the Human Body
- VCE Chemistry Flashcards