Author

Gloria E. Cotton Page 2

With National Board Certification in secondary science, Gloria E. Cotton spent her career teaching high school chemistry in public school classrooms before retiring from the district. She explains atomic structure and fundamental chemical properties. Cotton now helps run hands-on lab experiments as a volunteer with a local teen science club.

Why Is Hydrogen in Group 1 of the Periodic Table?Chemistry
What Is the Electron Configuration of the Calcium Ion?Chemistry
What Is an Electron Shell and How Does It Work?Physics
What Properties Do the Halogens Have in Common?Chemistry
What Did Henry Moseley Contribute to the Atomic Theory?Chemistry
Why Are Noble Gases So Unreactive?Chemistry
What Is the Relationship Between Atoms, Elements, and Compounds?Chemistry
Why Has the Atomic Model Changed Over Time?Physics
Why Is the Second Ionization Energy Higher?Chemistry
Why Is Hydrogen Set Apart by Itself on the Periodic Table?Chemistry
How Much Do Atoms Weigh? Explaining Atomic Mass Chemistry
What Is the Modern Atomic Theory?Physics
What Is a Nuclear Charge and How Does It Affect Atoms?Chemistry
Why Does Ionization Energy Increase Across a Period?Chemistry
What Are Synthetic Elements and How Are They Made?Chemistry
How Many Electrons Can Fit in the 3rd Shell?Chemistry
Which Elements Have Molecules as Their Basic Units?Chemistry
Which of the Following Is Located Outside the Nucleus?Biology
Which of the Following Is Not a Transition Metal?Chemistry
What Does an Element Look Like? From Shiny to Invisible Chemistry
What Experimental Evidence Shaped Each Atomic Model?Physics
What Happens When the Sodium Atom Loses an Electron?Chemistry
What Type of Ion Forms When an Atom Loses Electrons?Chemistry
How Does Atomic Radius Work?Chemistry
Which Groups on the Periodic Table Want to Lose Electrons?Chemistry
What Quantum Numbers Apply to Electrons in P Orbitals?Physics
What Properties of an Element Are Affected by Electron Distribution?Chemistry
How to Write the Ground State Electron Configuration Chemistry
Why Is Sodium So Highly Reactive?Chemistry
Does Nuclear Charge Increase Down a Group?Chemistry