Electron

Electron Affinity

And actually, you fill one electron here, another electron here, then another electron there.

Lithium's electron configuration.

While fluorine, that ninth electron just needs one more electron.

You have one electron.

What's the electron configuration?

We've removed an electron.

Then the electron is there.

likely to find an electron.

Reduction is gain an electron.

Hydrogen's electron configuration is 1s1.

It has one electron there.

It's got that extra electron.

There's the oxygen electron there.

Consider, for example, the electron.

Energy to remove an electron.

Don't mess with my electron.

So this has one electron.

So that's its electron configuration.

So this one extra electron, that might be where I observed that extra electron.

So you could say iron's electron configuration is the same thing as argon's electron configuration.

What's the electron configuration for Sn.

Hydrogen only has one electron outside.

It's hard to remove that electron.

And there's only one electron there.

So what is helium's electron configuration?

The second electron goes into 1s2.

So these guys really want to offload an electron. And who wants to take an electron?

All of a sudden, to remove an electron from lithium it only requires five electron volts.

Helium's electron configuration is 1s2. But all of these other guys, this guy's electron configuration is 1s2.

So I only have one extra electron.

That electron had jumped onto the chlorine.

But the electron really could be anywhere.

Very hard to remove that eighth electron.