Multiple Choice
Which statement is one of the postulates in Dalton's atomic theory?
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2. Atoms & Elements
Atomic Theory
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Which of the following statements is a postulate of Dalton's atomic theory?
A
All atoms have the same mass regardless of the element.
B
Atoms of a given element are identical in mass and properties.
C
Atoms can be created or destroyed in chemical reactions.
D
Atoms are divisible into protons, neutrons, and electrons.
Verified step by step guidance1
Understand that Dalton's atomic theory is a historical model that explains the nature of atoms and their behavior in chemical reactions.
Recall the key postulates of Dalton's atomic theory, which include: atoms are indivisible particles, atoms of a given element are identical in mass and properties, atoms of different elements differ in mass and properties, and atoms combine in simple whole-number ratios to form compounds.
Evaluate each statement in the problem against Dalton's postulates: the statement 'Atoms of a given element are identical in mass and properties' aligns with Dalton's theory.
Recognize that statements about atoms being divisible into protons, neutrons, and electrons, or atoms being created or destroyed, are not part of Dalton's original postulates but were discovered later.
Conclude that the correct postulate from Dalton's atomic theory among the options is: 'Atoms of a given element are identical in mass and properties.'
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