wwildplayer201oy97iq wwildplayer201oy97iq
  • 12-11-2017
  • Chemistry
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How many neutrons does element X have if its atomic number is 23 and its mass number is 78?

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Penguin84
Penguin84 Penguin84
  • 12-11-2017
The element X has 55 neutrons.
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