Atomic Structure - Chapter 1
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| Atoms are made up of several ____ | components
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| Components are called the ____ | elementary particles
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| The 3 major elementary particles are _____ | protons, neutrons, electrons
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| The protons and neutrons are packed together in an inner core called the _____ | nucleus
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| The outer part of the atom, which contains electrons, is called the ____ | electron cloud
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| Like electrical charges ____ each other | repel
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| Unlike electrical charges ____ each other | attract
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| The nucleus attracts negatively charged electrons. Therefore, the overall charge of the nucleus must be | positive
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| An atom consists of an inner part, or ____, that is made up of ____ and _____ | Nucleus, protons, neutrons
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| The electrons have what type of charge? | negative
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| The proton has what type of charge? | positive
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| The neutron has a charge of _____ | zero
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| The charge on the electron balances the charge on the proton. If the electron has a charge of -1, then the proton would have a charge of _____ | +1
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| An atom with one proton in its nucleus and one electron outside that nucleus would therefore have an overall charge of | 0
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| Atoms are electrically neutral. Therefore, an atom will contain an ____ number of ____ and ____ | equal, protons, electrons
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| An atom with 12 protons in the nucleus would have how many electrons outside the necleus? | 12
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