Question

which bohr model represents be?

Explanation:

Step1: Determine the atomic number of Be

The atomic number of Beryllium (Be) is 4. This means it has 4 protons.

Step2: Analyze electron configuration

The first electron shell can hold a maximum of 2 electrons. For Be, after filling the first shell with 2 electrons, the remaining \(4 - 2=2\) electrons go to the second shell.

Step3: Check each Bohr - model

• Look for the model with 4 protons (p) and electrons distributed as 2 in the first shell and 2 in the second shell.

Answer:

The Bohr - model with \(4\ p\) (protons) and electrons arranged as \(2\) in the first shell and \(2\) in the second shell represents Be.