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.
Earnest Rutherford's experiment,"Gold Foil", led to the discovery the of a Small,dense and positively charged Nucleus
shail = whale to the power of 2
After the discovery of the nucleus positive charge (nucleus) is completely separated from the negative charges (electrons).
After the discovery of the nucleus positive charge (nucleus) is completely separated from the negative charges (electrons).
discovery of the atom's structure
The discovery of radioactivity
Rutherford's experiment was important because it showed that an atom is mostly empty space. Rutherford gave more detail of the atom's structure.
The UV rays were entering the surface of earth. This led to discovery of ozone hole.
Nucleus - Rutherford fired particles at gold foil, and most went straight through. This showed that most of atoms are empty, and that most of the mass only occupies a small part of the atom. This part is known as the nucleus.
Watson and crick and the discovery of the double helix
Rutherford found that atoms have a nucleus
The thing that led the birth of the nucleus was The atomic numbers.