Bluefox09 Bluefox09

03-11-2020
Chemistry

contestada

which model correctly represents a
beryllium atom

which model correctly represents a beryllium atom class=

Respuesta :

toofeealyahya toofeealyahya

03-11-2020

Answer:

A

Explanation:

because its the atomic number is 4 so 4 = 4 electrons and 4 neutrons, the mass is 9 so 9-4= 5 so 4 electrons on the ring, 4 protons inside and 5 neutrons inside

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