Atomic Theory - Key Scientists

What did Rutherford discover using his "Gold Foil" experiment?

• the nucleus

• electrons

• neutrons

• protons

What did James Chadwick discover in 1932?

• neutrons
• electrons
• the atomic theory
• protons

In what year did Erwin Schrödinger create the Quantum Mechanical model of the atom?

• 1932

• 1913

• 1926

• 1923

What part of Dalton's atomic theory was later disproved by the discovery of the proton and the electron?

• Atoms combine in whole number ratios to form compounds

• Atoms are indivisible

• All elements are made up of atoms

• Atoms cannot change into another element due to a chemical reaction

Eugen Goldstein discovered the ____ in 1886

• electron

• nucleus

• proton

• corpuscle

The Greek word "atomos" , which is where we get the word "atom", means

• indivisible

• invisible

• indescribable

• individual

The first person to suggest the idea of the atom was

• Democritus

• John Dalton

• Niels Bohr

• Dmitri Mendeleev

Which scientist discovered that electrons move and behave like waves in the year 1923?

• Ernest Rutherford

• Niels Bohr

• Robert A Millikan

• Louis de Broglie

The first atomic model created by JJ Thomson was called

• The Thomson Model

• The Plum Pudding Model

• The Quantum Mechanical Model

• The Bohr's Model

In his atomic model known as the Bohr's Model, Niels Bohr stated that electrons were found in specific

• elements

• nuclei

• orbitals

• roundabouts