Question

Какое количество электронов находится на оболочках атома,если в ядре находится 12 протонов * 101114121315​

Answer 1

Ответ:

15

это правильный ответ

Answer 2

Number of Electrons in Atom's Shells

The number of electrons in an atom's shells can be determined using the electron configuration of the element. The electron configuration is a shorthand method of representing the way electrons are distributed in the orbitals of an atom. For the specific case of an atom with 12 protons in the nucleus, we can determine the number of electrons in its shells.

The element with 12 protons in its nucleus is magnesium (Mg). The electron configuration of magnesium is 1s² 2s² 2p⁶ 3s². This configuration indicates that magnesium has 12 electrons distributed across its shells.

- The first shell (K shell) can hold up to 2 electrons. - The second shell (L shell) can hold up to 8 electrons. - The third shell (M shell) can hold up to 18 electrons.

Therefore, for magnesium: - The first shell (K shell) contains 2 electrons. - The second shell (L shell) contains 8 electrons. - The third shell (M shell) contains 2 electrons.

This adds up to a total of 12 electrons, corresponding to the 12 protons in the nucleus of the magnesium atom.