silvanaarechiga2002 silvanaarechiga2002

10-06-2020
Chemistry

contestada

beryllium abundance number

Respuesta :

Harmonystanley2007 Harmonystanley2007

10-06-2020

Answer:

Protons: 4

Neutrons in most abundant isotope: 5

Electron shells: 2,2

Electron configuration: 1s2 2s2

Explanation:

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