500
0.1 L
300 feet.
21 5s
100 centimeters is 3 feet and 3.37 inches.
2.4 units
1, 2, 4, 5, 10, 20, 25, 50, 100.
50
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.
There are 10 decimeters in 100 centimeters (each decimeter is comprised of 10 centimeters)
7
20