Question

What is the electron configuration of chlorine (CI)?

A) 1s22s22p%3s 3p
B) 1822s22p%3s 3p
C)1s22s22p 3s24s23p3
D)15-2s 2p 3s 3p²3d3

Answer 1

It should be this: 1s22s22p63s23p5

Answer 2

Option B

`{1s}^(2) {2s}^(2) {2p}^(6) {3s}^(2) {3p}^(5)`

Step-by-step explanation:

In writing the electronic configuration for chlorine the first two electron will go in the 1s orbital.Since 1s can hold two electrons the next 2 electrons for chlorine go in the 2s orbital.The next 6 electrons will go in the 2p orbital.The p orbital can hold up to 6 electrons.We'll put six in the 2p orbital and then put the next 2 electron in the 3e.Since the 3s is now full.We'll move to 3p where we place remaining 5 electrons...

Thus,the electron configuration of chlorine(Cl) is

`{1s}^(2) {2s}^(2) {2p}^(6) {3s}^(2) {3p}^(5)`

Hope this helps....

Good luck on your assignment...