Which of these assumptions about atoms and matter do not form part of the modern atomic theory?Question 8Select one:a.All matter is composed of atoms.b.The atoms of a given element differ from the atoms of all other elements.c.Chemical compounds consist of atoms combined in specific ratios.d.Chemical reactions change the atoms themselves; the way the atoms are combined in compounds are unchanged.
Question
Which of these assumptions about atoms and matter do not form part of the modern atomic theory?Question 8Select one:a.All matter is composed of atoms.b.The atoms of a given element differ from the atoms of all other elements.c.Chemical compounds consist of atoms combined in specific ratios.d.Chemical reactions change the atoms themselves; the way the atoms are combined in compounds are unchanged.
Solution
To determine which assumption does not form part of the modern atomic theory, we need to analyze each option:
a. All matter is composed of atoms: This assumption is a fundamental principle of the modern atomic theory and is widely accepted.
b. The atoms of a given element differ from the atoms of all other elements: This is also a key concept in the modern atomic theory. Each element is composed of unique atoms with distinct properties.
c. Chemical compounds consist of atoms combined in specific ratios: This is another important aspect of the modern atomic theory. Chemical compounds are formed by the combination of atoms in fixed proportions.
d. Chemical reactions change the atoms themselves; the way the atoms are combined in compounds is unchanged: This assumption contradicts the modern atomic theory. In reality, chemical reactions involve the rearrangement of atoms to form new compounds with different combinations.
Therefore, the assumption that does not form part of the modern atomic theory is option d.
Similar Questions
According to the modern atomic theory:Question 6Select one:a.Chemical reactions do not change the way the atoms are combined in compounds.b.Chemical compounds consist of atoms combined in specific ratios.c.All matter is not composed of atoms.d.The atoms of a given element are the same as atoms of all other elements.
What part of Dalton's atomic theory was later proved to be incorrect?A.All matter is made up of different kinds of elements.B.All atoms of one kind are identical and cannot be divided.C.All atoms are made up of elements that can combine in reactions.D.All atoms of one kind are called elements.
Which of the following statements is not true about an atom?1 pointa) Atoms are not able to exist independently.b) Atoms are the basic units from which molecules and ions are formed.c) Atoms are always neutral in nature.d) Atoms aggregate in large numbers to form the matter that we can see, feel or touch
Which statement is part of the currently accepted atomic model?A.An atom is a positively charged ball with electrons scattered throughout.B.Atoms are the smallest particles of matter and cannot be divided.C.An atom is made up of electron clouds with different energy levels that surround a nucleus.D.An atom is made up of a nucleus surrounded by electrons that travel in orbits.
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