Biology is designed for multi-semester biology courses for science majors. It is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand. To meet the needs of today’s instructors and students, some content has been strategically condensed while maintaining the overall scope and coverage of traditional texts for this course. Instructors can customize the book, adapting it to the approach that works best in their classroom. Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand—and apply—key concepts.

By the end of this section, you will be able to:Define matter and elementsDescribe the interrelationship between protons, neutrons, and electronsCompare the ways in which electrons can be donated or shared between atomsExplain the ways in which naturally occurring elements combine to create molecules, cells, tissues, organ systems, and organisms

By the end of this section, you will be able to:Define matter and elementsDescribe the interrelationship between protons, neutrons, and electronsCompare the ways in which electrons can be donated or shared between atomsExplain the ways in which naturally occurring elements combine to create molecules, cells, tissues, organ systems, and organisms

"The Chemistry of Power: A Comprehensive Guide to Nuclear Energy is a carefully designed unit for Chemical Engineering students and lecturers. It is divided into three lessons, each lesson breaks down complex concepts into simple, bite-sized pieces, ensuring a smooth learning experience for all.In Lesson 1, "Understanding Key Terms in  Nuclear Energy," we start by learning the basic words used in nuclear energy, like atomic mass and binding energy. Through clear examples, you'll grasp these important ideas and get ready for more challenging stuff.Lesson 2, "Energy Basics," builds on what we've learned. Here, we dive into how energy and mass are connected, making it easier to understand how nuclear reactions work. You'll follow along step by step, so everything stays clear and straightforward.Finally, Lesson 3, "Nuclear Energy Calculations," puts your new skills to the test. You'll solve problems and work together with others to understand how to turn energy into mass and back again. It's like a puzzle, but once you've got it, you'll feel super smart!By following these lessons in order, you'll gradually become a pro in nuclear energy, understanding the ins and outs of how it all works. 

In this course, we will explore what makes things in the world the way they are and why, to understand the science and consider the engineering. We learn not only why the physical world behaves the way it does, but also how to think with chemical intuition, which can’t be gained simply by observing the macroscopic world.
This 2018 version of 3.091 by Jeffrey Grossman and the 2010 OCW version by Don Sadoway cover similar topics and both provide complete learning materials. This 2018 version also includes Jeffrey Grossman’s innovative Goodie Bags, Why This Matters, and CHEMATLAS content, as well as additional practice problems, quizzes, and exams.

Are all atoms of an element the same? How can you tell one isotope from another? Use the sim to learn about isotopes and how abundance relates to the average atomic mass of an element.

Are all atoms of an element the same? How can you tell one isotope from another? Use the sim to learn about isotopes and how abundance relates to the average atomic mass of an element.