Question

Розмістіть елементи в порядку збільшення числа електронів на зовнішньому енергетичному pівні іхніх атомів. А Плюмбум Б Сульфур В Натрій Г Бром ​

Answer 1

Ответ:

В) А) Б) Г)

Объяснение:

А - 4, Б - 6, В - 1, Г - 7

Answer 2

Arranging Elements in Increasing Order of the Number of Electrons in their Outer Energy Level

To arrange the elements in increasing order of the number of electrons in their outer energy level, we need to determine the electron configuration of each element. The electron configuration describes the distribution of electrons in the energy levels and orbitals of an atom.

Here is the arrangement of the given elements in increasing order of the number of electrons in their outer energy level:

B (Sulfur): The electron configuration of sulfur is 1s² 2s² 2p⁶ 3s² 3p⁴. Sulfur has 6 electrons in its outer energy level.

В (Натрій, Sodium): The electron configuration of sodium is 1s² 2s² 2p⁶ 3s¹. Sodium has 1 electron in its outer energy level.

Г (Бром, Bromine): The electron configuration of bromine is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁵. Bromine has 7 electrons in its outer energy level.

А (Плюмбум, Lead): The electron configuration of lead is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p². Lead has 2 electrons in its outer energy level.

Therefore, the elements arranged in increasing order of the number of electrons in their outer energy level are:

В (Натрій, Sodium) < А (Плюмбум, Lead) < B (Sulfur) < Г (Бром, Bromine).

Please note that the Ukrainian names for the elements have been provided in parentheses for clarity.