What Element Has 4 Protons And 5 Neutrons?
What Element Has 4 Protons And 5 Neutrons? What element has 4 protons and 5 neutrons? 4 protons, 5 neutrons, and 4 electrons are there in an atom of beryllium. What is the symbol of beryllium? Be What’s the atomic number for beryllium? 4 What is the mass of beryllium? 9.012182 u What can you