A beryllium atom contains 4 protons, 4 neutrons and 4 electrons. What is the atomic number of beryllium?
2 answers:
Answer:
Beryllium's atomic number is 4
Explanation:
<u>Reason</u>
- Beryllium has 4 protons, 4 neutrons, and 4 electrons.
- This makes it a nuetral atom meaning that it contains an equal amount of protons and electrons
- This means that beryllium has a atomic number of 4
Answer:
the atomic number 4
Explanation:
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