jrqywywb jrqywywb
  • 08-09-2017
  • Biology
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what is true of an atoms nucleus ?

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johnonam
johnonam johnonam
  • 08-09-2017
Almost all of the mass in an atom is made up from the protons and neutrons in the nucleus with a very small contribution from the orbiting electrons. Neutrons have no charge and protons are positively charged. Because the nucleus is only made up of protons and neutrons it is positively charged.
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