Periodic table and p block elements

Question

I have two questions:

It's said that in p block there's gradation in physical and chemical properties of elements. What is meant by this statement?
Why are the different blocks named s, p, d and f?

DHMO · Answer 1 · 2016-09-06T16:09:15.573

1

First question

'p' block elements contain both metal and non-metal and we observe a gradation of properties (such as electropositivity, electronegativity, reducing or oxidising property etc.) as we move from left to right in a period.

Second question

From the Wikipedia article on atomic orbital:

They are derived from the description by early spectroscopists of certain series of alkali metal spectroscopic lines as sharp, principal, diffuse, and fundamental. Orbitals for ℓ > 3 continue alphabetically, omitting j (g, h, i, k, …)

edited Sep 06 '16 at 16:09

answered Sep 06 '16 at 16:01

DHMO

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Aren't trends followed in every block?If yes,why did my teacher tell that point only for that specific block? – Abhijith Dileep Kumar Sep 06 '16 at 16:07
@AbhijithDileepKumar That would be something you should ask your teacher. – DHMO Sep 06 '16 at 16:09
I am sorry.But could you tell me what "complexes"are in chemistry? – Abhijith Dileep Kumar Sep 06 '16 at 16:24
@AbhijithDileepKumar Make that a separate question with sufficient context (where do you see this word? can you quote the whole sentence?) – DHMO Sep 06 '16 at 16:37
https://en.wikipedia.org/wiki/Coordination_complex – DHMO Sep 06 '16 at 16:37

Periodic table and p block elements

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