Question

Сколько энергетических уровней имеет атом, если для его внешних электронов главное квантовое число n = 3?

Answer 1

Наверное 2 энергетических уровня
если на первом энергетическом уровне может быть только 2 электрона, то на следующем уровне 1
итого - n=3
если не так, то  я не знаю

Answer 2

Energy Levels of an Atom with Principal Quantum Number n = 3

An atom with the principal quantum number n = 3 has 3 energy levels for its electrons. The electrons in an atom are arranged in energy levels or shells, and the principal quantum number (n) indicates the energy level of the electron. For n = 3, the atom has electrons in the 3rd energy level.

The electron configuration for an atom with n = 3 can be represented as follows: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹₀. This configuration shows the distribution of electrons in the various energy levels, including the 3rd energy level (3s² 3p⁶ 3d¹₀).

In summary, an atom with the principal quantum number n = 3 has 3 energy levels for its electrons, with the electron configuration indicating the distribution of electrons in these energy levels.

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