Author

Dong-hyun Kim

Dong-hyun Kim is a staff writer at Biology Insights specializing in the physical sciences. Living in Las Cruces, New Mexico, he worked in editorial production for scientific journals before turning to full-time science reporting. He applies his academic background in physics to explain fundamental concepts such as atomic structure, radiation, and physical scale. Kim graduated from SUNY Oswego with a BS in physics.

What Is a Proton, Neutron, and Electron?
What Does Helium Do to Your Voice? And Is It Safe?
What Is the Charge of the Nucleus?
How Many Ways to Shuffle a Deck of Cards vs Atoms
Do Neutrons and Protons Have the Same Mass?
Where Is Most of the Atom’s Mass Located?
Does the Force of Gravity Increase With Mass?
What Is the Charge of a Beta Particle?
How Many Nanometers Is an Atom?
How Many Calories Are in a Pound of Uranium?
What Are the 3 Properties of Matter?
How Much Radiation Is in the Elephant’s Foot?
Do Protons and Electrons Attract or Repel?
Is an Atom the Smallest Particle?
Does the Demon Core Still Exist? What Happened to It?
How Big Is an Atom in Nanometers?
What Does a Geiger Counter Measure?
What Is the Particle Theory of Matter?
What Is the Atomic Mass of a Neutron?
What Is the Difference Between Chemistry and Physics?
Can You Buy Antimatter? The Cost and Possibilities
How Much Does an Electron Weigh?
What Makes Up Most of the Volume of an Atom?
What Is a Picocurie? A Unit of Radioactive Measurement
What Subatomic Particle Determines the Identity of an Atom?
What Are the Charges and Relative Masses of Subatomic Particles?
Are Electrons, Protons, or Neutrons the Smallest Particles?
What Subatomic Particle Has the Smallest Mass?
Is Lightning an Element or a State of Matter?
What Is the Mass of Neutrons in an Atom?