1. Remind students of the different substances they have worked with and explain that these substances are all made of atoms and molecules. Remind students that the different materials they have ...

A team of physicists and engineers at the University of Colorado Boulder has discovered a new way to measure the orientation of magnetic fields using what may be the tiniest compasses around—atoms.

For the first time, researchers have been able to measure the quantum state of electrons ejected from atoms that have ...

Discovery of stable single-electron covalent bond in carbon compound validates a century-old theory Covalent bonds, in which ...

Bohr turned to Planck's quantum theory to explain the stability of most atoms. He found that the ratio of energy in electrons and the frequency of their orbits around the nucleus was equal to ...

Ensure students have an understanding of how mass and atomic numbers can explain the number of protons, neutrons and electrons in atoms. Explain with examples that isotopes have the same number of ...

Students will be able to explain that the parts of an object can be rearranged to create a new object. Students will also get a sense of the number of different objects that can be created from a ...