Search Resources

12 Results

View
Selected filters:
  • Atomic Mass
Atomic weight and atomic mass
Only Sharing Permitted
CC BY-NC-ND
Rating

The difference between atomic weight and atomic mass in chemistry, and how it compares to the physics definitions of weight and mass.

Subject:
Chemistry
Material Type:
Lecture
Provider:
Khan Academy
Author:
Sal Khan
Date Added:
03/14/2017
Balancing Chemical Equations
Unrestricted Use
CC BY
Rating

How do you know if a chemical equation is balanced? What can you change to balance an equation? Play a game to test your ideas!

Subject:
Chemistry
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Chris Malley
Emily Moore
Kathy Perkins
Kelly Lancaster
Patricia Loeblein
Robert Parson
Date Added:
08/15/2011
Biology
Unrestricted Use
CC BY
Rating

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.

Subject:
Life Science
Biology
Material Type:
Full Course
Provider:
Rice University
Provider Set:
OpenStax College
Date Added:
08/22/2012
Biology, The Chemistry of Life, The Chemical Foundation of Life, Atoms, Isotopes, Ions, and Molecules: The Building Blocks
Conditional Remix & Share Permitted
CC BY-NC
Rating

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

Subject:
Applied Science
Life Science
Biology
Material Type:
Module
Provider:
Rice University
Provider Set:
OpenStax College
Date Added:
07/10/2017
Remix
Biology, The Chemistry of Life, The Chemical Foundation of Life, Atoms, Isotopes, Ions, and Molecules: The Building Blocks
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating

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

Subject:
Applied Science
Life Science
Biology
Material Type:
Module
Provider:
Rice University
Provider Set:
OpenStax College
Author:
Tina B. Jones
Date Added:
08/26/2019
Concord Consortium: Probability Clouds
Read the Fine Print
Rating

In this interactive activity, learners build computer models of atoms by adding or removing electrons, protons, and neutrons. It presents the orbital model of an atom: a nucleus consisting of protons and neutrons with electrons surrounding it in regions of high probability called orbitals. Guided tasks are provided, such as constructing a lithium atom and a carbon-12 atom in the fewest possible steps. The activity concludes with a model for building a charged hydrogen atom (an ion). Within each task, students take snapshots of their work product and answer probative questions. This item is part of the Concord Consortium, a nonprofit research and development organization dedicated to transforming education through technology.

Subject:
Engineering
Chemistry
Physics
Material Type:
Lesson
Provider:
Concord Consortium
Provider Set:
Concord Consortium Collection
Author:
National Science Foundation
The Concord Consortium
Date Added:
05/17/2011
Isotopes and Atomic Mass
Unrestricted Use
CC BY
Rating

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.

Subject:
Chemistry
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Emily Moore
John Blanco
Kathy Perkins
Kelly Lancaster
Robert Parson
Sam Reid
Trish Loeblein
Date Added:
07/18/2011
Isotopes and Atomic Mass (AR)
Unrestricted Use
CC BY
Rating

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.

Subject:
Chemistry
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Emily Moore
John Blanco
Kathy Perkins
Kelly Lancaster
Patricia Loblein
Robert Parson
Sam Reid
Date Added:
05/13/2011