Question

why we take S P d and f words in the chemistry periodic table​

Answer 1

all these represent blocks in periodic tableThey are named s,p,d,f .The s, p, d, and f stand for sharp, principal, diffuse and fundamental, respectively. The letters and words refer to the visual impression left by the fine structure of the spectral lines which occurs due to the first relativistic corrections, especially the spin-orbital interaction.

Answer 2

Explanation:

Mostly, They are the first letter of the element, but sometimes the letter are already taken so we can use 1st and 2nd letter of the element and Potassium formulae is K because K comes from kalium, the Mediaeval Latin for potash,