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1. An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element.
2. J.J Thomson
3. 1897
4. In electrons
5. They are important because we need to know about elements and which ones can be potentially dangerous.

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1. An atom is a fundamental piece of matter.( Matter is anything that can be touched physically.)

2. John Dalton
3. They were discovered in 1897.
4. Atom was the discovery of electrons.

5. Why is it important for us to know about the atom?
The food you eat, the air we breathe even your body is made up of matter. All the "stuff around us is made of matter. But matter is made up of atoms. From the trees to the bees: Humans , water, air, food- it's all made up of atoms.

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1. what is an atom?
a. /ˈadəm/ (noun): the basic unit of a chemical element.

2. who discovered the atom?
a. john dalton, j. j thompson, and ernest rutherford.

3. when was it discovered?
a. 1897 (a major advance in time)

4. where was it discovered?
a. it was discovered when rutherford was looking at electrons. he found a nuclear atom in the gold foil experiment.

5. why is it important for us to know about the atom?
a. "The fact that atoms cannot be created or destroyed in chemical reactions allows for all sorts of important predictions. " (https://www.purdue.edu/dft/dirac-feynman-and-the-new-suspenders/)

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1. An atom is an extremely small amount of a thing or quality.
2. J.J. thomson
3. The atom was first discovered in 1897
4. Cheetham Hill, Cambridge
5. Atoms form the smallest building blocks of chemistry, and they combine to form an infinite variety of more complicated structures.

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ernest rutherford

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gold foil experiment

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atom and a neutron

# data[].attributes.body
1. An atom is the basic building block of an object.
2. j. j thomson in 1897
3. Atoms were discovered in 1897
4. The atom was discovered in Cheetham Hill, Cambridge
5. It's important to know about atoms because they are the fundamental building blocks of everything around us.

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j. j thomson

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atoms

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atom structure