gases used in the discovery of protons

Since the atom is electrically neutral there must be positively charged particles present in the atom to neutralize the negative charges of the electrons. Goldstein experimentally proved the existence of protons in the ato..

Since atoms on the whole are neutral, the presence of negatively charged electrons suggested the presence of positively charged particle..

Discovery of Noble Gases - Discovery of noble gases is an interesting story, which reveals painstaking work of different scientis..

Discovery of noble gases is an interesting story, which reveals painstaking work of different scientists. i) Discovery of argon, ii) Discovery of helium, iii) Discovery of xenon, krypton and neon, iv) Discovery of rado..

Search for the missing particle - Although Rutherford's model was enormously successful at explaining the scattering of alpha particles, there was a problem when the experimental data were used to calculate the mass of the nucleus. From the results of the scattering experiments, it was po..

The whole mass of an atom is due to the nucleus, which means that the nucleus must contain protons equal to the mass of the atom. As the number of protons is equal to the atomic number, the atomic mass should be equal to the atomic number. But for all atoms except hydrogen the ..

Discovery of Sulphur - Sulphur has been known from ancient times. The ancient Indians, the Inca Indians, Greeks and Romans used sulphur, as a fumigant, and in certain medicines. The word "Sulphur" is probably derived from the Sanskrit word "Sulveri" meaning "enemy of copper" as ..

Sulphur has been known from ancient times. The ancient Indians, the Inca Indians, Greeks and Romans used sulphur, as a fumigant, and in certain medicines. The word "Sulphur" is probably derived from the Sanskrit word "Sulveri" meaning "enemy of copper" as copper loses all its proper..

The history of the discovery of cells dates back to the 17 t h century and is closely associated with the history of the invention of microscopes. An Italian microscopist Marcello Malpighi studied the structure of some plants and proposed the idea that plants are composed of tiny structur..