academy

Charge of an Electron: Millikan’s Oil Drop Experiment

10 years ago341,0646,033 207

Discovery of the Nucleus: Rutherford’s Gold Foil Experiment

10 years ago446,0706,335 0

Atomic Structure: Discovery of the Neutron

10 years ago179,7882,426 0

Atomic Mass: Introduction

10 years ago390,9444,107 0

Atomic Mass: How to Calculate Isotope Abundance

10 years ago427,0164,035 0

What’s the Difference between Mass Number and Atomic Mass?

10 years ago396,5754,647 0

What’s the Difference between Mass Number and Atomic Weight?

10 years ago80,488995 85

Basic Atomic Structure: A Look Inside the Atom

10 years ago650,3794,782 0

Isotopes and Elements Practice Problems

10 years ago297,2512,796 0

Atomic Number, Mass Number, and Net Charge

10 years ago431,7413,506 0