QQuestionChemistry
QuestionChemistry
Beryllium (Be) has an atomic number of 4. How many protons, neutrons, and electrons would a beryllium atom have? (Beryllium has an atomic mass of 9 amu.)
A. 4 protons, 4 neutrons, 4 electrons
B. 4 protons, 5 neutrons, 4 electrons
C. 4 protons, 4 neutrons, 5 electrons
D. 5 protons, 4 neutrons, 4 electrons
6 months agoReport content
Answer
Full Solution Locked
Sign in to view the complete step-by-step solution and unlock all study resources.
Step 1Let's solve this step by step:
Step 2: Determine the number of protons
- Therefore, a beryllium atom has $$4$$ protons
- The atomic number of an element tells us the number of protons in its nucleus - For beryllium, the atomic number is 4
Final Answer
B. 4 protons, 5 neutrons, 4 electrons
Need Help with Homework?
Stuck on a difficult problem? We've got you covered:
- Post your question or upload an image
- Get instant step-by-step solutions
- Learn from our AI and community of students