Abbi's Science Test

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576234

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What did Democritus contribute to the atomic theory or chemistry?

He came up with the atom

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{"id":2478257,"question_id":"576234","created_at":"2018-09-26 01:47:13","updated_at":"2018-09-26 01:47:13","answerTitle":"He came up with the atom","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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576235

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What did Dalton contribute to the atomic theory or chemistry?

All atoms of different elements are different

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{"id":2478258,"question_id":"576235","created_at":"2018-09-26 01:47:58","updated_at":"2018-09-26 01:47:58","answerTitle":"All atoms of different elements are different","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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576236

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what did Thomson contribute to the atomic theory or chemistry?

He discovered the electron

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{"id":2478259,"question_id":"576236","created_at":"2018-09-26 01:48:32","updated_at":"2018-09-26 01:48:32","answerTitle":"He discovered the electron","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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576237

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what did Rutherford contribute to the atomic theory or chemistry?

He discovered the nucleus

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{"id":2478260,"question_id":"576237","created_at":"2018-09-26 01:49:16","updated_at":"2018-09-26 01:49:16","answerTitle":"He discovered the nucleus","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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576238

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What did Bohr contribute to the atomic theory or chemistry?

He discovered that electrons move in specific layers.

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{"id":2478261,"question_id":"576238","created_at":"2018-09-26 01:50:03","updated_at":"2018-09-26 01:50:03","answerTitle":"He discovered that electrons move in specific layers.","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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576239

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in the modern model of the atom, do we know the exact location of electrons at a given time?

no. electrons are always rapidly moving around the nucleus

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{"id":2478262,"question_id":"576239","created_at":"2018-09-26 01:50:53","updated_at":"2018-09-26 01:50:53","answerTitle":"no. electrons are always rapidly moving around the nucleus ","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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576240

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what are protons?

protons determine what an element is

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{"id":2478263,"question_id":"576240","created_at":"2018-09-26 01:51:27","updated_at":"2018-09-26 01:51:27","answerTitle":"protons determine what an element is","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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576241

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what are electrons?

electrons are negatively charged particles in an atom that are involved in the formation of chemical bonds

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{"id":2478264,"question_id":"576241","created_at":"2018-09-26 01:51:58","updated_at":"2018-09-26 01:51:58","answerTitle":"electrons are negatively charged particles in an atom that are involved in the formation of chemical bonds","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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576242

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what are neutrons

they are particles of the nucleus that have no charge

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{"id":2478265,"question_id":"576242","created_at":"2018-09-26 01:52:21","updated_at":"2018-09-26 01:52:21","answerTitle":"they are particles of the nucleus that have no charge","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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576243

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what are isotopes?

atoms that have different number of protons

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{"id":2478266,"question_id":"576243","created_at":"2018-09-26 01:52:50","updated_at":"2018-09-26 01:52:50","answerTitle":"atoms that have different number of protons","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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576244

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where are protons located in an atom?

they are located in the nucleus

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{"id":2478267,"question_id":"576244","created_at":"2018-09-26 01:53:14","updated_at":"2018-09-26 01:53:14","answerTitle":"they are located in the nucleus","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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576245

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where are electrons located in an atom?

in the electron cloud or "cloud"

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{"id":2478268,"question_id":"576245","created_at":"2018-09-26 01:53:42","updated_at":"2018-09-26 01:53:42","answerTitle":"in the electron cloud or \"cloud\"","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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576246

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where are neutrons located in an atom?

in the nucleus

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{"id":2478269,"question_id":"576246","created_at":"2018-09-26 01:54:07","updated_at":"2018-09-26 01:54:07","answerTitle":"in the nucleus","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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576247

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what do the protons charge?

positive

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{"id":2478270,"question_id":"576247","created_at":"2018-09-26 01:54:29","updated_at":"2018-09-26 01:54:29","answerTitle":"positive","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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576248

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what do the electrons charge?

negative

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{"id":2478271,"question_id":"576248","created_at":"2018-09-26 01:54:50","updated_at":"2018-09-26 01:54:50","answerTitle":"negative","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

Abbi's Science Test

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