Question

Исходя из значений квантовых чисел для электронов внешнего энергетического уровня (n = 4; l = 0; ml= 0; ms= +1/2), напишите электронную формулу этого элемента, укажите его название и свойства – металл или неметалл.

Answer 1

K -калий(метал)

1s2 2s2 2p6 3s2 3p6 4s1

 

 

 

Answer 2

Quantum Numbers and Electron Configuration

The given quantum numbers for the electron are: - Principal quantum number (n) = 4 - Azimuthal quantum number (l) = 0 - Magnetic quantum number (ml) = 0 - Spin quantum number (ms) = +1/2

Based on these quantum numbers, we can determine the electron configuration and the element it represents.

Electron Configuration

The electron configuration is determined by the values of the quantum numbers. The electron configuration for the given quantum numbers is 4s¹.

Element and Properties

The element with the electron configuration 4s¹ is potassium (K).

Properties: - Metal: Potassium is a metal. - Softness: It is a soft metal that can be easily cut with a knife. - Reactivity: Potassium is highly reactive, especially with water, and must be stored under oil to prevent reaction with air.

So, based on the given quantum numbers, the element is potassium, which is a metal with properties such as softness and high reactivity.