Development of Atomic Models
Chemistry ⇒ Atomic Structure and the Periodic Table
Development of Atomic Models starts at 8 and continues till grade 12.
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Describe one major difference between the Bohr model and the Rutherford model of the atom.
Describe the main idea of the ‘plum pudding’ model of the atom.
Explain why Dalton’s atomic theory was important for the development of chemistry.
Explain why the gold foil experiment was important in the development of atomic models.
In the context of atomic models, what is meant by the term ‘nucleus’?
What did the gold foil experiment conducted by Rutherford demonstrate about the structure of the atom?
What is the main difference between the Rutherford and Bohr models of the atom?
Which experiment led to the discovery that atoms are mostly empty space?
Which of the following best describes the location of electrons in the modern atomic model?
(1) In fixed orbits
(2) In the nucleus
(3) In regions called electron clouds
(4) In the center of the atom
Which of the following best describes the main idea of Dalton’s atomic theory?
(1) Atoms are made of protons, neutrons, and electrons
(2) Atoms are indivisible and indestructible particles
(3) Atoms have a nucleus
(4) Atoms have energy levels
Which of the following is NOT a feature of the modern atomic model?
(1) Electrons are found in fixed orbits
(2) Electrons are found in electron clouds
(3) The nucleus contains protons and neutrons
(4) Atoms are mostly empty space
Which of the following is NOT a part of Dalton’s atomic theory?
(1) Atoms cannot be divided into smaller particles
(2) Atoms of different elements are different
(3) Atoms can be created or destroyed in chemical reactions
(4) Atoms combine in simple whole-number ratios to form compounds
Fill in the blank: According to the Bohr model, electrons can jump from one ________ to another by absorbing or releasing energy.
Fill in the blank: The ________ model of the atom is sometimes called the ‘solar system’ model.
Fill in the blank: The ________ model of the atom was replaced by the nuclear model after the gold foil experiment.
Fill in the blank: The ________ model of the atom was the first to include a central nucleus.
True or False: According to Dalton’s atomic theory, atoms of different elements can combine in simple whole-number ratios to form compounds.
True or False: According to Rutherford’s model, most of the atom’s mass is concentrated in the nucleus.
True or False: J.J. Thomson’s model of the atom is also known as the ‘plum pudding’ model.
True or False: The Bohr model is still the most accurate model of the atom used today.
