Question

What is the electronoc configuration of that element whose last electron is plaved in g subshell?

Answer 1

Answer:

I'm learning about orbital quantum numbers. While checking several elements on the periodic table I noticed that there aren't any atoms that have electrons

Answer 2

Well, the first available sub-shell for "g" electrons would be 5g (i.e., 1s, 2p, 3d, 4f, so 5g). Based on current trends, we'd need row 8 of the periodic table. We just haven't found those elements yet.

Let's look at it this way.

After row 1 (1s electrons only), there are 2 rows of the s and p-block elements before "d" opens up with 3d1 4s2

After two rows of s- p- and d-block elements, the "f" block opens up with cerium: 4f1 5d1 6s2