Curated Video
Light in a Tube: Exploring Discharge Tube Experiments
Discharge tube experiments are crucial in understanding atomic structure and the discovery of subatomic particles. These experiments involve the interaction of electricity with gases at low pressures, observing cathode rays and their...
Curated Video
Limitations of Bohr's Theory
Niels Bohr's Atomic Model Limitations • Primarily applied to hydrogen, not accounting for complexities of multi-electron atoms. • Oversimplified concept of fixed, circular orbits for electrons. • Failed to account for fine structure of...
Curated Video
Maximizing Space The Science of Packing Efficiency
Maximizing Space: The Science of Packing Efficiency" Packing efficiency, also known as packing fraction or atomic packing factor, is a measurement of how efficiently atoms or particles are packed in a crystal structure. Magnetic Might:...
Curated Video
The Periodic Table
The year 2019 is celebrated as the International Year of the Periodic Table (#IYPT) in recognition of its discovery 150 years ago in 1869. Listen along as Dr. Boyd gives a detailed explanation of its arrangement and what all the letters...
Veritasium
The Stickiest *Non-Sticky* Substance
This material, inspired by gecko skin, has the unique ability to stick to smooth surfaces like fruits, water bottles, and bags without being sticky. Developed in Professor Mark Kokuski's lab at Stanford, it mimics the van der Waals...
Curated Video
Valence Bond Theory: A Journey into Chemical Bonding
Valence Bond (VB) theory explains how chemical bonds form through the overlap of atomic orbitals, where electron pairs are shared between atoms. The key concepts include: Atomic Orbital Overlap: Bonds form when atomic orbitals from...
Curated Video
Formal Charge Made Simple: A Guide to Molecular Stability
Formal Charge Made Simple: A Guide to Molecular Stability Formal charge is a bookkeeping tool used to estimate the charge distribution within a molecule. It is calculated by comparing the number of valence electrons in an atom's free...
Curated Video
Mastering Lewis Structures: Essential Rules for Drawing Bond Maps
Lewis structures are diagrams that represent the bonding between atoms in a molecule and the lone pairs of electrons that may exist. These structures are crucial in understanding how atoms share or transfer electrons to form stable...
Curated Video
Anions in Action: Their Role in Ionic Bonding
Anions, formed by electron gain, contribute to ionic bond formation. Larger anions with higher charges enhance the bond's electrostatic attraction
Curated Video
Cations at Work: Shaping Ionic Bonds
Cations, formed by electron loss, influence ionic bond strength. Smaller cations with higher charges create stronger ionic interactions
Curated Video
The Nature of Chemical Bonds: How Electronegativity Shapes Them
Electronegativity differences between atoms determine the type of bond: ionic bonds form when the difference is large, while covalent bonds form with similar electronegativity.
Curated Video
Kossel-Lewis Theory: The Foundations of Chemical Bonding
The Kossel-Lewis approach introduced the concept of ionic and covalent bonds. It emphasizes the role of electron transfer or sharing between atoms to achieve noble gas configurations
Curated Video
Lewis Symbols Decoded: Simplifying Electron Counts
Lewis symbols represent valence electrons around an atom's chemical symbol, helping visualize bonding and the formation of molecules
Science ABC
What is Radioactivity and Is It Always Harmful: Explained in Really Simple Words
Radioactivity is the property through which a heavier, unstable nucleus assumes a more stable state by emitting radiation. The process through which a nucleus turns into a stable one is called radioactive decay. But is radioactivity or...
Science ABC
What is Calculus in Math? Simple Explanation with Examples
Calculus is a branch of mathematics that deals with very small changes. Calculus consists of two main segments—differential calculus and integral calculus. Differential calculus primarily deals with the rate of change of things, while...
Science ABC
What Happens If You Try To Shoot Down A Nuclear Missile Mid-Air?
It’s highly unlikely to shoot down a missile mid-air. But there's more to it than that! Causing a nuclear bomb to detonate requires a precise orchestration of events, without which the chain reaction does not initiate and the bomb...
Science ABC
What Are The Different Atomic Models? Dalton, Rutherford, Bohr and Heisenberg Models Explained
Atomic Models: Centuries ago, people didn’t know exactly what was inside an atom, but they had some “ideas”. Around 400 BC, a Greek philosopher named Democritus came up with a theory that everything in the world was made of tiny...
Science ABC
How Transistors Work - A Quick and Basic Explanation
Do you know how transistors work? What is it about transistors that make them the building block of so many electronic items, like computer, laptops, smartphones and tablets these days? What is a transistor? The transistor is arguably...
Science ABC
How Robert J. Oppenheimer became the ‘Father of the Atomic Bomb’
Robert J. Oppenheimer, born on April 22, 1904, is known as the father of the atomic bomb. Oppenheimer was awarded a PhD in theoretical physics and was interested in the emerging field of quantum physics. As a scientist at the University...
Science ABC
What Is The Smallest Particle We Know?
We have built beautiful particle accelerators in the search for particles that are even more elementary than electrons, protons, and neutrons. The accelerators smash subatomic particles at enormous speeds, which causes them to shatter...
Science ABC
Why Is The Periodic Table Arranged The Way It Is?
The periodic table is arranged by atomic number, which is the number of protons in an element’s nucleus. The elements are arranged in order of increasing atomic number. The periodic table is also arranged by groups and periods. The...
Science ABC
Why Doesn’t Water Burn, Despite Being Made Of Combustible Substances (Hydrogen And Oxygen)?
Water is formed as a result of the combustion of hydrogen. In simple words, water is what you get when you burn hydrogen. So, water doesn’t burn because, in a way, it has already burned. You get ashes when you burn paper; but when you’re...
Science ABC
Why Aren't We Using Nuclear Fusion To Solve Our Energy Crisis?
We aren’t using nuclear fusion to generate power yet because it is incredibly difficult to sustain a fusion reaction. The energy requirements are very high, and it is hard to find materials that can withstand such high temperatures....
Curated Video
Valence Electrons & Lewis Dot Diagrams - what are they and how do I draw them?
Valence electrons are the electrons in the outermost energy level of an atom. They are important because they are involved in the chemical bonding of our elements which helps determine the reactivity of elements. In order to be stable,...