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Course: High school chemistry > Unit 1

Lesson 1: Atomic structure
Science
High school chemistry
Atoms, elements, and the periodic table
Atomic structure
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Problem

The element neon glows bright red when exposed to an electric current, so it is often used to make illuminated signs. The chemical symbol for neon is Ne.
Determine the number of protons in neon.
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
protons