Atomic Structure - SS1 Chemistry Past Questions and Answers - page 1

Who proposed the concept of atoms as indivisible and indestructible particles?

Which scientist discovered the electron and proposed the "plum pudding" model of the atom?

Who conducted the gold foil experiment, leading to the discovery of the atomic nucleus?

Which scientist proposed the planetary model of the atom, with electrons orbiting around a central nucleus?

Which scientist proposed the concept of energy levels or electron shells within the atom?

Who discovered the neutron, an uncharged particle in the atomic nucleus?

Which scientist formulated the modern atomic theory?

Which scientist proposed the wave-particle duality of electrons and developed the quantum mechanical model of the atom?

Who first introduced the concept of isotopes and explained atomic spectra using quantum theory?

Who is credited with the discovery of the atomic nucleus and the development of the nuclear model of the atom?