maddielally07 maddielally07
  • 06-02-2024
  • Chemistry
contestada

How many valence electrons are in an element with the following electron configuration?
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 6s2 5d10 6p3

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