Question

9. Запиши назви двох хімічних елементів малих періодів, в атомах яких на зовнішньому енергетичному рівні містяться по 4 електрони. Зобрази схеми будови електронних оболонок атомів цих хімічних елементів.​

Answer 1

Ответ:

Карбон (С), Силіцій (Si)

извините что так неаккуратно, я просто в тц

Answer 2

Two Chemical Elements with 4 Electrons in their Outer Energy Level

Two chemical elements with 4 electrons in their outer energy level are Beryllium (Be) and Carbon (C).

Electron Configuration of Beryllium (Be)

Beryllium (Be) has an atomic number of 4, which means it has 4 electrons. The electron configuration of beryllium is 1s² 2s². This means that the first energy level (1s) contains 2 electrons, and the second energy level (2s) contains 2 electrons. The outermost energy level (2s) contains 2 electrons, fulfilling the condition of having 4 electrons in the outer energy level.

Electron Configuration of Carbon (C)

Carbon (C) has an atomic number of 6, which means it has 6 electrons. The electron configuration of carbon is 1s² 2s² 2p². This means that the first energy level (1s) contains 2 electrons, the second energy level (2s) contains 2 electrons, and the second energy level (2p) contains 2 electrons. The outermost energy level (2s and 2p) contains 4 electrons, fulfilling the condition of having 4 electrons in the outer energy level.

Electron Shell Diagrams

Here are the electron shell diagrams for beryllium (Be) and carbon (C):

Beryllium (Be): ``` 1s² 2s² ```

Carbon (C): ``` 1s² 2s² 2p² ```

In the electron shell diagrams, each line represents an energy level, and the superscript represents the number of electrons in that energy level. The outermost energy level is represented at the bottom of the diagram.

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