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Complete the shell rules

Exercise and reference answers

Missing parts
  1. Answer
    two
    Choices
    1. two
    2. four
    3. eight
  2. Answer
    eight
    Choices
    1. two
    2. six
    3. eight
  3. Answer
    closest
    Choices
    1. closest
    2. furthest
    3. opposite
Complete the statement
The innermost shell holds at most {0} electrons, the next shells hold {1}, and electrons fill the orbitals {2} to the nucleus first.
Instructions
Tap a word for each blank to complete the rules.

Explanation

_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 2 'The Chemical Foundation of Life', sections 2.1-2.3_
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