Which of the following represents the electronic structure of three elements in the periodic table

A. 2.8.1 2.8.3 2.8.4 B. 2.8 2.8.1 2.8.2
C. 2.7 2.8 2.8.1 D. 2.1 2.8.1 2.8.8.1

Respuesta :

Answer:

a

Explanation:

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