Atomic Structure and Periodic Table Quiz

Which scientist first described the atom as a solid, indivisible sphere?

• Thomson

• Dalton

• Rutherford

• Bohr

Rutherford’s gold foil experiment showed that —

• electrons have a negative charge

• atoms are mostly empty space with a dense nucleus

• atoms are solid, indivisible spheres

• neutrons exist inside the nucleus

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Which scientist proposed that electrons move in specific energy levels around the nucleus?

• Schrödinger

• Bohr

• Thomson

• Rutherford

Which scientist is associated with the “plum pudding” model of the atom?

• Dalton

• Rutherford

• Thomson

• Bohr

Arrange these atomic models in the correct historical order: Dalton’s solid sphere model, Rutherford’s nuclear model, Bohr’s energy level model, Schrödinger’s electron cloud model

Which subatomic particle determines the identity of an element?

• Neutron

• Proton

• Electron

• Photon

Which two subatomic particles are found in the nucleus?

• Protons and neutrons

• Protons and electrons

• Neutrons and electrons

• Electrons and photons

What is the charge of the nucleus of an atom?

• Positive

• Negative

• Neutral

• It depends on the isotope

Which subatomic particle has almost no mass compared to the others?

• Proton

• Neutron

• Electron

• Photon

In a neutral atom, the number of protons is always equal to the number of —

• Neutrons

• Electrons

• Nuclei

• Valence shells

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