mayamadhat mayamadhat
  • 20-10-2020
  • Chemistry
contestada

Which number indicates the energy level of an atom's valence electrons?
O A. The period number
O B. The group number
O c. The atomic number
O D. The mass number

Respuesta :

ashanty03 ashanty03
  • 02-03-2021

Answer:A, The Period Number

Explanation:

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