Question

an element has atom with 13 electrons
(a)draw a diagram to show the electronic configuration.
(b) write the electronic configuration in its=2 ion.
(c)Name the element.​

Answer 1

Answer:

it can be said that since the atomic number of the element is 13 it means it has 13 electrons and also 13 protons. Therefore, option A is true. The electronic configuration of Aluminium, having atomic number 13 is [Ne] 3s13px1

Explanation:

write the electronic configuration in its=2 ion.

Beryllium is the fourth element with a total of 4 electrons. In writing the electron configuration for beryllium the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the remaining 2 electrons for Be go in the 2s orbital. Therefore the Be electron configuration will be 1s22s2.

Name the element

Carbon C 6

Cerium Ce 58

Cesium Cs 55

Chlorine Cl 17