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Which particles are considered to be the building blocks of our physical world?Question 1Select one:elementsgasesatomsmoleculesClear my choiceQuestion 2Not yet answeredMarked out of 1Flag questionQuestion textAn atom can be observed with a microscope?Question 2Select one:TrueFalseQuestion 3Not yet answeredMarked out of 1Flag questionQuestion textWho was the first person to reason that matter consists of indivisible particles?Answer: Question 3

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Which particles are considered to be the building blocks of our physical world?Question 1Select one:elementsgasesatomsmoleculesClear my choiceQuestion 2Not yet answeredMarked out of 1Flag questionQuestion textAn atom can be observed with a microscope?Question 2Select one:TrueFalseQuestion 3Not yet answeredMarked out of 1Flag questionQuestion textWho was the first person to reason that matter consists of indivisible particles?Answer: Question 3

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Solution

Question 1: The building blocks of our physical world are considered to be atoms.

Question 2: False, an atom cannot be observed with a microscope due to its incredibly small size.

Question 3: The first person to reason that matter consists of indivisible particles was Democritus, a Greek philosopher.

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Give three characteristics of particles of matter.

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All matter on that exists on Earth are made up of one or more chemical elements.Question 4Select one:TrueFalseQuestion 5Not yet answeredMarked out of 1Flag questionQuestion textAll elements have:Question 5Answera.unique namesb.unique chemical symbolc.specific atomic number

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