Question

rank the following five elements by ionization enegry. Li, F, Be, C, O

Answer 1

The trend for ionization energy (IE) is to decrease down a column (group), and decreases to the right on a row.

This makes sense because when you increase the atomic radius, you increase the distance from the nucleus to the valence electrons. These electrons feel a smaller effective nuclear charge because of the distance and the screening (of charge) by core electrons.

Answer 2

So on top of the q'cumber all on the line; Come all ye globules and blobby their fines!

Answer 3

spam much?

Answer 4

No, just when I can't hold it in.