He was J.J.Thomson
Edwin Nucleus
Ernest Rutherford
The scientist who proposed the idea of the atom as a hard sphere was J.J. Thomson. He later refined this model to include the concept of electrons embedded in a positively charged "plum pudding" to account for the behavior of atoms.
Niels Bohr proposed the idea that electrons have fixed orbits around the nucleus of an atom in his model of the atom in 1913. This concept helped to explain the stability of atoms and the spectral lines observed in hydrogen.
A German scientist Alfred Wegener first proposed the idea of Continental Drift.
Sir Chatles Lyell.
Alfred Wegener was the scientist who proposed the idea of continental drift in the early 20th century. He suggested that the Earth's continents were once joined together in a single supercontinent called Pangaea, which later broke apart and drifted to their current positions.
ya mum
you are probably referring to dalton
The first scientist to question the idea that atoms were indivisible was John Dalton, an English chemist, in the early 19th century. Dalton proposed that atoms were not actually indivisible, as previously believed, but rather could be rearranged in chemical reactions.
John Dalton, an English school teacher and chemist, proposed the idea that everything is made of very small particles called atoms in the early 19th century. His atomic theory laid the foundation for modern chemistry.
Louis de Broglie proposed the hypothesis that electrons have wave-like properties, known as wave-particle duality, in his 1924 doctoral thesis. This idea laid the foundation for the development of quantum mechanics.