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Questions and Answers
Newland's Octane Rule states that properties of every eighth element are similar to those of the first element.
Newland's Octane Rule states that properties of every eighth element are similar to those of the first element.
True (A)
Newland organized the elements based on their atomic numbers.
Newland organized the elements based on their atomic numbers.
False (B)
The Octane Rule involves a comparison of every tenth element rather than every eighth element.
The Octane Rule involves a comparison of every tenth element rather than every eighth element.
False (B)
According to Newland, the properties of elements are unrelated to their order in the periodic table.
According to Newland, the properties of elements are unrelated to their order in the periodic table.
Newland's Octane Rule is a principle primarily used in organic chemistry.
Newland's Octane Rule is a principle primarily used in organic chemistry.
Newlands arranged the elements in order of their atomic number.
Newlands arranged the elements in order of their atomic number.
Newlands' Octane Rule states that the properties of elements repeat at intervals of 8.
Newlands' Octane Rule states that the properties of elements repeat at intervals of 8.
Newlands' arrangement of elements was based on their atomic weight.
Newlands' arrangement of elements was based on their atomic weight.
The Octane Rule was formulated by Mendeleev.
The Octane Rule was formulated by Mendeleev.
Elements arranged by Newlands show repeated properties every ten elements.
Elements arranged by Newlands show repeated properties every ten elements.
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Study Notes
Newlands' Octane Rule
- John Newlands proposed the octane rule in the 1860s as a way to structure the periodic table.
- Elements are arranged sequentially based on increasing atomic mass.
- Noticed a repeating pattern in properties every eight elements, similar to musical octaves.
- First element in a group shares similar properties with the eighth element that follows it in the sequence.
- Newlands' work was foundational, leading to the development of the modern periodic table despite its limitations.
- His rule demonstrated an early understanding of periodicity among elements, which later contributed to the formulation of the periodic law.
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