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Chemistry · Topic 30

Atomic theory, discoveries and history

Sub-topic 1 2024 · National Preliminary Free

What dalton's atomic theory did and did not claim (true/false)

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Sub-topic 2 2014 · National Quarterfinal Premium

Statements not part of dalton's atomic theory (nucleus/electrons)

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Sub-topic 3 2014 · National Quarterfinal Premium

Statements not part of dalton's atomic theory (identical mass for same element)

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Sub-topic 4 2014 · National Quarterfinal Premium

Statements that are part of dalton's atomic theory (different elements differ; simple whole-number combination)

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Sub-topic 5 2016 · National One-Eighth Premium

Attributing 'atoms of different elements differ' to john dalton

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Sub-topic 6 2016 · National One-Eighth Premium

Completing dalton's statement on atoms combining in simple whole-number ratios

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Sub-topic 7 2016 · National One-Eighth Premium

Mendeleev's periodic table preceded thomson's plum-pudding model

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Sub-topic 8 2016 · National One-Eighth Premium

Rutherford's gold-foil experiment: three observations and the conclusions they support

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Sub-topic 9 2017 · National Semifinal Premium

Three postulates of dalton's atomic theory

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Sub-topic 10 2021 · National Quarterfinal Premium

Three elements named after countries: germanium, polonium, francium

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Sub-topic 11 2022 · National Preliminary Premium

Scientists who discovered the neutron, electron and proton

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Sub-topic 12 2022 · National One-Eighth Premium

Riddle: lithium, the lightest metal, used in the first synthetic nuclear reaction

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