Question

write the name symbol and electronic configuration of an element X whose atomic number is 11​

Answer 1

Name- sodium (Na). K- 2 L- 8 M-1

Answer 2

5. An element X who atomic number is 11, will have an electronic configuration, 2,8,1.

It has 2, 8 and 1 elctrons/ electron in the K, L and M shells respectively.

11 is the atomic number of the element sodium. Its symbol is Na.

Sodium has one electron in the outermost orbit, that is, in its M shell.

So it will donate that one electron to complete its octate.

So, sodium is an electropositive element.