Multiple Choice
Which best explains how scientists confirmed that the Moon formed around the same time as Earth?
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2. Atoms & Elements
Atomic Theory
Multiple Choice
Which of the following lists the scientists involved in atomic theory in the correct chronological order?
A
Thomson, Dalton, Bohr, Rutherford
B
Dalton, Thomson, Rutherford, Bohr
C
Rutherford, Bohr, Dalton, Thomson
D
Bohr, Rutherford, Thomson, Dalton
Verified step by step guidance1
Step 1: Understand the historical timeline of atomic theory development by identifying the key contributions of each scientist.
Step 2: Recall that John Dalton proposed the first modern atomic theory in the early 19th century, establishing atoms as indivisible particles.
Step 3: Recognize that J.J. Thomson discovered the electron in 1897, leading to the plum pudding model of the atom.
Step 4: Note that Ernest Rutherford conducted the gold foil experiment around 1911, discovering the atomic nucleus and proposing a nuclear model.
Step 5: Remember that Niels Bohr developed his model of the atom in 1913, introducing quantized electron orbits around the nucleus.
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