SCIENCE 8

science-8

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578634

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"The properties of elements vary periodically with atomic numbers." What law is this?

Periodic Law

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578636

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What do you call the vertical columns of the periodic table?

groups

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{"id":2495064,"question_id":"578636","created_at":"2018-09-29 12:21:31","updated_at":"2018-09-29 12:21:31","answerTitle":"groups","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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578637

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These are particles consisting of 2 or more atoms combined together in a specific arrangement.

molecules

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{"id":2495065,"question_id":"578637","created_at":"2018-09-29 12:22:21","updated_at":"2018-09-29 12:22:21","answerTitle":"molecules","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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578638

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What kind of liquids are ready to evaporate?

volatile liquids

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{"id":2495066,"question_id":"578638","created_at":"2018-09-29 12:22:53","updated_at":"2018-09-29 12:22:53","answerTitle":"volatile liquids","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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578640

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What is the mass of electrons?

9.109 x 10^-28

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{"id":2495077,"question_id":"578640","created_at":"2018-09-29 12:23:29","updated_at":"2018-09-29 12:23:29","answerTitle":"9.109 x 10^-28","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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578641

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What is the mass of protons?

1.672 x 10^-24

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{"id":2495078,"question_id":"578641","created_at":"2018-09-29 12:24:00","updated_at":"2018-09-29 12:24:00","answerTitle":"1.672 x 10^-24","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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578642

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When did Rutherford propose the model of an atom?

1912

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{"id":2495079,"question_id":"578642","created_at":"2018-09-29 12:24:28","updated_at":"2018-09-29 12:24:28","answerTitle":"1912","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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578643

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What is the meaning of the Greek word "atomos"?

indivisible

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{"id":2495080,"question_id":"578643","created_at":"2018-09-29 12:24:54","updated_at":"2018-09-29 12:24:54","answerTitle":"indivisible","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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578645

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The molecules that escape from the liquid and go to gaseous phase are called _______.

vapor

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{"id":2495087,"question_id":"578645","created_at":"2018-09-29 12:25:55","updated_at":"2018-09-29 12:25:55","answerTitle":"vapor","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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578646

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Measure of the space occupied by an object is called _________.

volume

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{"id":2495088,"question_id":"578646","created_at":"2018-09-29 12:26:27","updated_at":"2018-09-29 12:26:27","answerTitle":"volume","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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578647

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Who proposed the "Law of Octaves"?

John Newlands (1863)

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{"id":2495089,"question_id":"578647","created_at":"2018-09-29 12:27:00","updated_at":"2018-09-29 12:27:00","answerTitle":"John Newlands (1863)","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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578649

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Who observed that the order of the x-ray frequencies emitted by elements follows the ordering of the elements by atomic number?

Henry Moseley (1914)

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{"id":2495103,"question_id":"578649","created_at":"2018-09-29 12:28:02","updated_at":"2018-09-29 12:28:02","answerTitle":"Henry Moseley (1914)","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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578650

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Method of painting using dots to come up with various effects.

pointillism

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{"id":2495104,"question_id":"578650","created_at":"2018-09-29 12:28:41","updated_at":"2018-09-29 12:28:41","answerTitle":"pointillism","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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578651

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Who proposed the plum pudding model?

J.J. Thomson

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{"id":2495105,"question_id":"578651","created_at":"2018-09-29 12:29:12","updated_at":"2018-09-29 12:29:12","answerTitle":"J.J. Thomson","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

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578652

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What do you call the experiment in which a group of scientists tested Thomson's model by bombarding a very thin sheet of gold foil with positively charged alpha particles?

Alpha Particle Scattering Experiment

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{"id":2495106,"question_id":"578652","created_at":"2018-09-29 12:30:34","updated_at":"2018-09-29 12:30:34","answerTitle":"Alpha Particle Scattering Experiment","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":"","type":0}

SCIENCE 8

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