If you are given a chance to make improvements in the modern periodic table, what changes would you make? Explain with reasons.

Question

Accepted Answer

(sample, open-ended): One improvement could be giving hydrogen its own separate position instead of placing it strictly under group IA, since hydrogen behaves differently from alkali metals in many reactions (it can also gain an electron like halogens). Another possible improvement is integrating the lanthanide and actinide series directly into the main body of the table instead of placing them separately below, to reflect their true position by atomic number — though this is avoided in practice because it would make the table too wide for convenient printing/display.