Beryllium has 4 protons.
The same size as it is in a Helium atom
Beryllium has 4 protons and normally 4 neutrons in its nucleus. It usually has 4 electrons orbiting that nucleus, but this number can change depending on its level of ionisation.
aluminum produces neutrons, beryllium is better, but either work.
Beryllium has 4 protons
Beryllium has 4 electrons.
The same size as it is in a Helium atom
Beryllium has 4 protons and normally 4 neutrons in its nucleus. It usually has 4 electrons orbiting that nucleus, but this number can change depending on its level of ionisation.
The atomic/proton no. of beryllium is 3. Thus the number of protons is 3.
Beryllium (watch the spelling) is element number 4. That means that a beryllium atom has 4 protons; if the atom is neutral it has 4 electrons (however, it might not be neutral, in this case it can have more or less), and the number of neutrons varies, depending on the isotope - between 1 and 13 neutrons in the case of beryllium.
aluminum produces neutrons, beryllium is better, but either work.
The valence of beryllium is two.
Beryllium has 4 electrons.
Beryllium has 4 protons
This depends on the element. Hydrogen has one proton (per atom), helium has two, beryllium has three, etc.
Beryllium has 4 electrons.
Beryllium-9 has 9 nucleons.
Beryllium