Intro to Atoms

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What are electrons?

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Electrons are subatomic particles with a negative charge that orbit the nucleus of an atom.

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Where can electrons be found in an atom?

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Electrons can be found in the electron clouds surrounding the nucleus.

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What is the nucleus of an atom?

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The nucleus is a tiny, dense, positively charged portion of the atom that contains protons and neutrons.

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What are protons?

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Protons are subatomic particles with a positive charge found in the nucleus of an atom.

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What are neutrons?

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Neutrons are subatomic particles with no charge (neutral) that are found in the nucleus of an atom.

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What is the Bohr Model?

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The Bohr Model is a representation of the atom that depicts electrons orbiting the nucleus in defined paths or energy levels.

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What is the Thomson Model?

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The Thomson Model, also known as the 'plum pudding model', suggests that atoms are made of a positively charged substance with negatively charged electrons scattered throughout.

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What is the Rutherford Model?

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The Rutherford Model describes the atom as having a small, dense nucleus surrounded by electrons, showing that most of the atom is empty space.

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What is the Cloud Model?

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The Cloud Model describes the atom as having electrons in a cloud-like region around the nucleus, where their exact position cannot be determined.

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What is atomic mass?

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Atomic mass is the weighted average mass of an atom's isotopes, measured in atomic mass units (amu).

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