Multiple Choice
Which is the best description of a scientific theory?
2. Atoms & Elements
Atomic Theory
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Which of the following statements about atomic theory is false?
A
Atoms combine in simple whole-number ratios to form compounds.
B
Atoms of the same element have identical properties.
C
Chemical reactions involve the rearrangement of atoms.
D
Atoms are indivisible and indestructible.
Verified step by step guidance1
Step 1: Understand the context of atomic theory. Atomic theory is a scientific theory of the nature of matter, which states that matter is composed of discrete units called atoms.
Step 2: Review the historical development of atomic theory. Dalton's atomic theory, proposed in the early 19th century, included the idea that atoms are indivisible and indestructible.
Step 3: Recognize the advancements in atomic theory. Modern atomic theory has evolved with the discovery of subatomic particles (protons, neutrons, and electrons), which shows that atoms are divisible.
Step 4: Analyze each statement: (a) Atoms combine in simple whole-number ratios to form compounds - this is true and aligns with Dalton's theory. (b) Atoms of the same element have identical properties - this is generally true, although isotopes can have different masses. (c) Chemical reactions involve the rearrangement of atoms - this is true and a fundamental concept in chemistry.
Step 5: Identify the false statement: 'Atoms are indivisible and indestructible' is false in modern atomic theory because atoms can be divided into subatomic particles and can undergo nuclear reactions.
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