Question

connect the name of the scientist to their contribution to the modern model of atomic structure. bohr rutherford thomson schrödinger chadwick democritus initial concept of protons and neutrons electrons in clouds electrons in orbits by energy levels initial concept of electrons initial concept of atom initial concept of nucleus

Explanation:

• Bohr: Proposed electrons orbit at specific energy levels.
• Rutherford: Discovered the nucleus through his gold - foil experiment.
• Thomson: First proposed the existence of electrons (plum - pudding model).
• Schrödinger: Developed the electron - cloud model.
• Chadwick: Discovered neutrons (contributed to the initial concept of protons and neutrons).
• Democritus: Proposed the initial concept of the atom.

Answer:

• Bohr: Electrons in orbits by energy levels
• Rutherford: Initial concept of nucleus
• Thomson: Initial concept of electrons
• Schrödinger: Electrons in clouds
• Chadwick: Initial concept of protons and neutrons
• Democritus: Initial concept of atom