Week days . important clue explained by Prof AvSundaram

Planets and Metals.

Atomic weights and Weekdays.

Saturn.....Lead.........207
Mercury... Mercury..200
Sun...........Gold........196
Jupiter......Tin...........118
Moon........ Silver......108
Venus........Copper......64
Mars..........Iron...........56.

Now like Hora..take alternate Planet..you get the Weekdays.

Saturday.. Sunday.. Monday.. Tuesday... Wednesday.. Thursday and Friday..

What a Wisdom of our Sages.😇