juanlimon88
juanlimon88 juanlimon88
  • 06-10-2020
  • Chemistry
contestada

help me i will chose brainiest

help me i will chose brainiest class=

Respuesta :

marcellosigler67
marcellosigler67 marcellosigler67
  • 06-10-2020

Answer:

Atomic # is 9

protons 9

neutrons: 10

electrons: 9

mass :18.n u

energy shells: 18

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