Well if there is 12x 5s in a minute and 60 minutes in an hour (12x60=720) and there are 24 hours in a day then its 720x24= 17, 280
21 5s
In the Rb atom, the electron configuration is [Kr]5s^1. This means there is 1 electron in the 5s sublevel of the Rb atom.
7
20
24
75
90
10
i think there are 18 digit 5s.
12
The answer would be 7,000