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Recall which statements about atoms are true.The ordinary matter around us is made out of themThey are about 5 mm in diameterThey come in different varieties, such as carbon and goldThey are far too small to see with the naked eyeI'm not sure

Question

Recall which statements about atoms are true.The ordinary matter around us is made out of themThey are about 5 mm in diameterThey come in different varieties, such as carbon and goldThey are far too small to see with the naked eyeI'm not sure

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Solution

The following statements about atoms are true:

  1. The ordinary matter around us is made out of them: This is true. Atoms are the basic units of matter and make up everything in the universe that has mass and volume.

  2. They are about 5 mm in diameter: This is false. Atoms are incredibly small. The average size of an atom is about 0.1 to 0.5 nanometers in diameter.

  3. They come in different varieties, such as carbon and gold: This is true. Atoms of different elements have different numbers of protons, neutrons, and electrons. These differences give atoms their unique properties and allow them to combine in various ways to create all the substances we see around us.

  4. They are far too small to see with the naked eye: This is true. Atoms are so small that they can only be seen with very powerful microscopes, such as electron microscopes. Even then, we can only see representations of atoms, not the atoms themselves.

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