miapackard
miapackard miapackard
  • 13-10-2017
  • Chemistry
contestada

Which element has the same number of energy levels as aluminum (Al) and the same number of valence electrons as calcium (Ca)?
A. Beryllium B. Sodium C. Potassium D. Magnesium

Respuesta :

gem02 gem02
  • 14-02-2019

The correct answer is Magnesium (Mg)

Answer Link

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