What is the number of protons present in beryllium?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 4.
Beryllium is a chemical element with the symbol Be and atomic number 4. The atomic number represents the number of protons in an atom of the element. Therefore, beryllium contains 4 protons in its nucleus. This characteristic is fundamental to defining the element and differentiating it from others in the periodic table. Beryllium is located in group 2, which is the alkaline earth metals, and it plays a significant role in various applications, including aerospace and nuclear industries due to its unique properties.