Question

Помогите пожалуйста Установите соответствие между распределены электронов по энергетике кимоно уровням атома элемента и его символом А.2е-8е-1е. 1 At Б.2е-8е-4е. 2 P В.2е-8е-5е. 3 Si Г.2е-8е-8е. 4 Na

Answer 1

Correspondence between Electron Distribution and Atomic Symbol

To determine the correspondence between the electron distribution in the energy levels of an atom and its atomic symbol, we need to understand the electron configuration of each element. The electron configuration describes the arrangement of electrons in an atom's energy levels or shells.

Let's analyze each option and find the correct correspondence:

A. 2e-8e-1e corresponds to 1 At (Astatine).

The electron configuration of Astatine (At) is 2-8-18-32-18-7. This means that Astatine has 1 electron in its outermost energy level.

B. 2e-8e-4e corresponds to 2 P (Phosphorus).

The electron configuration of Phosphorus (P) is 2-8-5. This means that Phosphorus has 5 electrons in its outermost energy level.

C. 2e-8e-5e corresponds to 3 Si (Silicon).

The electron configuration of Silicon (Si) is