Question

The electron configuration for magnesium is shown below. 1s22s22p63s2 Which diagram shows the correct distribution of electrons in the electron shells of a magnesium atom? mc025-1.jpg mc025-2.jpg mc025-3.jpg mc025-4.jpg

Answer 1

diagrams are not visible. pls attach .

Answer 2

Explanation: Magnesium atom is the 12 element in the periodic table.

The electronic configuration of Magnesium- element is: $1s^22s^22p^63s^2$

There are 12 electrons in total around Magnesium nucleus. There are 3 shells around the nucleus which are n = 1, 2 and 3.

The electrons in n = 1 shell are 2.

The electrons in n = 2 shell are 8.

The electrons in n = 3 shell are 2.

The distribution of electrons in the electron shells of a magnesium atom is given in the image attached.