Atomic Structure and Models Quiz

Who proposed the plum pudding model of the atom?

• Albert Einstein

• Isaac Newton

• Marie Curie

• J.J. Thomson

What did Rutherford's gold foil experiment conclude about the structure of the atom?

• The atom has no nucleus and the electrons are randomly scattered throughout the atom.

• The atom has a large, dense, negatively charged nucleus at its center, with the protons orbiting around it.

• The atom has a small, dense, negatively charged nucleus at its center, with the protons orbiting around it.

• The atom has a small, dense, positively charged nucleus at its center, with the electrons orbiting around it.

What is the basic postulate of Dalton's atomic theory?

• atoms are made up of protons and neutrons

• atoms can be divided into smaller particles

• matter is composed of molecules

• matter is composed of indivisible particles called atoms

What did JJ Thomson discover about the atom using the cathode ray tube experiment?

• Atoms are indivisible and cannot be broken down into smaller particles

• Atoms do not contain any charged particles

• Atoms are made up of only positively charged particles

• Atoms contain negatively charged particles (electrons)

According to Bohr's model of the atom, in which orbit does an electron have the lowest energy?

• First orbit

• Tenth orbit

• Fifth orbit

• Second orbit

What is the charge of the nucleus in Rutherford's model of the atom?

• Negative

• Neutral

• Fractional

• Positive

who proposed the plum pudding model?

• James Chadwick

• JJ Thompson

• Neils Bohr

• John Dalton

What is the mass of an electron compared to a proton in Dalton's atomic theory?

• 1/1836

• 1/2000

• 1/500

• 1/100

What is the main difference between Rutherford's model and Bohr's model of the atom?

• The main difference is in the color of the nucleus.

• The main difference is in the size of the nucleus.

• The main difference is in the arrangement of electrons around the nucleus.

• The main difference is in the shape of the nucleus.

What is the significance of the discovery of the neutron in the atomic structure?

• It helped to explain the stability of the atomic nucleus and led to the development of nuclear energy and nuclear weapons.

• It had no impact on the understanding of atomic structure

• It caused more confusion in the study of atomic structure

• It led to the development of renewable energy sources