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3 - Atomic Structure

⭐ +230 XP
  • ✓Describe the structure of an atom.
  • ✓Identify subatomic particles, their charges, and relative masses.
  • ✓Explain atomic and mass numbers.
  • ✓Write electron configurations for the first 20 elements.
  • ✓Define isotopes and explain radioactivity.
  • ✓Discuss useful and harmful effects of radioisotopes.
  • ✓Connect atomic structure to other fields of science and the environment.
⏱ 0 mins🎯 46 marks
💡Engage
Atoms are the tiny architects of our world. From the salt in Caribbean seawater (NaCl) to the iron in our blood, everything you see, touch, and breathe is made of atoms. Imagine every atom as a miniature solar system, the nucleus as the Sun, and electrons whizzing around like planets.
💡Engage
💡Engage
Before today, had you studied atomic structure in school? How confident are you about atomic structure right now?
💡EngageQuestion 5 of 30

Which statement do you think best describes an atom?

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💡Engage
Atoms are the tiny architects of our world. From the salt in Caribbean seawater (NaCl) to the iron in our blood, everything you see, touch, and breathe is made of atoms. Imagine every atom as a miniature solar system, the nucleus as the Sun, and electrons whizzing around like planets.
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