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Beryllium-9 Neutrons: Protons: Electrons:
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4 votes
Beryllium-9
Neutrons:
Protons:
Electrons:

User Vladimir Kishlaly
by
5.5k points

1 Answer

1 vote

Answer:

Neutrons - 5

Protons - 4

Electrons - 4

Step-by-step explanation:

Beryllium (Be) is the 4th element on the Periodic Table.

It has 4 protons and 4 electrons (neutral charge)

Atomic Mass = # of Protons + # of Neutrons

9 = 4 + x

x = 5 Neutrons

User Ron Nabuurs
by
5.0k points
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