Oct 19, · One beryllium atom has four (4) electrons, four (4) protons, and three (3), five (5) or six (6) neutrons, depending on the isotope being considered.
Atomic Structure of Beryllium - Number of neutrons, protons, electrons in Beryllium - Chem How
Beryllium has 4 protons and electrons in its structure. Beryllium-9 is unique as being the only monoisotopic element with both an even number of protons and. Beryllium (Be) has an atomic number of 4. This means it is the fourth lightest element, and 4th in the periodic table. More importantly, this means it has 4 protons in the nucleus. Now, its .
Here, the atomic number is 4, thus beryllium contains 4 electrons and 4 protons. Since, the atomic mass is 9, the number of neutrons is equal to 5 (= 9 - 4). Hope this helps.