== == Atoms were inferred to exist from the observation of "Brownian motion," which is the jittering of dust particles in air or water or some medium as seen through a microscope. The jitter is supposed to be caused by random collisions of atoms or molecules with the dust particles. If the medium were not composed of particles but were a smooth creamy substance without lumps, there would be nothing to make the dust particles jitter.
The discovery of a negative charged particle - electron - in the atom.
Experiments with cathode rays led to the discovery of the electron.
The gold-foil experiment
Alpha particle ie doubly ionized helium atom scattering by the gold foil experiment formed the basis for the discovery of nucleus. The experiment was done by Marsden and Geiger but the experimental observation was commented and final conclusion derived by Rutherford.
shail = whale to the power of 2
Electrons have more energy the farther they are from the nucleus.
An atomic model from John dalton doesn't exist.
Ernest Rutherford's experiment led to the discovery of protons.
discovery of the atom's structure
The discovery of radioactivity
The UV rays were entering the surface of earth. This led to discovery of ozone hole.
That chemical reactions allowed atoms to be changed and moved.
One factor that led to the voyages of discovery was curiosity. This played a large role in the motivation needed.
Watson and crick and the discovery of the double helix
The main People involved in the corpse of Discovery are Lewis and Clark.
His discovery led to the eradication of smallpox around the world.
British Physicist Ernest Rutherford is considered the 'father of nuclear physics' and is credited with splitting the first atom in 1917. He pioneered the Rutherford model of the atom and theorized that the charge of an atom is concentrated into a nucleus. He was able to split the atom in a nuclear reaction between alpha and nitrogen particles which led to the discovery of the proton.
The discovery of gold.
The discovery of the Rosetta Stone led to the ability to decode hieroglyphics. It was found by French soldiers in Cairo, Egypt in 1799.