# How do you determine the electron configuration of #"W"#?

##### 1 Answer

#[Xe]4f^14\5d^4\6s^2#

#### Explanation:

We first need to find the closest noble gas to tungsten on the periodic table.

From here, tungsten is number

#[Xe]#

Next, we have

We know that xenon's full electron configuration is

From this picture, we see that the next shell we choose to fill will be the

It can hold

#[Xe]6s^2#

#20-2=18# more electrons

Next comes the

#[Xe]6s^2 4f^14#

#18-14=4# more electrons

Since the

So, our final electron configuration for tungsten is:

#[Xe]6s^2\4f^14\5d^4#

or we can rearrange it in order of

#[Xe]4f^14\5d^4\6s^2#