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The word "atom" comes from the Greek "atomos" (named by Democritus) which means "indivisible" as it was thought in ancient times that atoms were the fundamental...

MOTION → This is perhaps the simplest of many possible representations of an atom. Lithium always has three protons in the nucleus, and most lithium has four...

The atom is a basic unit of matter consisting of a dense, central nucleus surrounded by a cloud of negatively charged electrons. An atom is the smallest...

An atom is the basic unit that makes up all matter. There are many different types of atoms, each with its own name, mass and size. These different atoms...

An Atom is a small part of an element that takes part in chemical reactions. It is made up of three subatomic structures called Protons, Neutrons, and...

with some definitions: atom a particle that is indivisible during chemical reactions element atoms of the same atomic number An atom = nucleus (positive...

The Rutherford model or planetary model was a model of the atom devised by Ernest Rutherford. Rutherford directed the famous Geiger-Marsden experiment...

chemical bonding which is characterized by the sharing of electrons between atoms. Covalent bonds are mainly formed due to the tendency of the elements to...

in furlongs per fortnight? A hydrogen atom is about 0.11 nm in diameter. The "relative motion in a hydrogen atom in crossed electric and magnetic fields...

In atomic physics, the Bohr model depicts the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around...

Elements contain only one type of atom. They can't be split up into anything simpler. Everything on Earth is made up of elements. There are about 118 different...

Ionic bonding occurs when an atom or molecule completely transfers electrons to another atom or molecule. This happens because the valence electron of...

As you probably know, the atom is made of electrons, neutrons and protons. The nucleons are made of subatomic particles. Atoms were first theorized by the...

these integrals, we will check that the 1s wavefunction of the hydrogen atom is normalized. Ψ 1s = Ψ n = 1 , l = 0 , m = 0 = [ R n = 1 , l = 0 ( r ) ]...

Reduction is the loss of oxygen atom from a molecule or the gaining of one or more electrons. A reduction reaction is seen from the point of view of the...

(a) Lessons [1](Oak Bay School Website) Youtube video "Atom Song": [2] (b) Labs/Activities (c) Assessments...

any "six-membered aromatic heterocycle containing four carbon atoms, two nitrogen atoms and three double bonds" is called a diazine. The diazines have...

The force that holds two or more atoms together is called a chemical bond. The process by which bonds are formed is called chemical bonding. When a bond...

the De Broglie wave with amplitude modulation. The motion of electrons in atoms occurs by means of rotation around the atomic nuclei. In the substantial...

years later Schrödinger calculated the energy of an electron in a hydrogen atom by using an equation that treated the electron like a wave. He obtained a...