After each charging, a battery is able to hold only 99% of the charge from the previous charging. The battery was used for 15 hours on its first charge before it had to be recharged. What is the total number of hours the battery can be used over its lifetime?

13.5 hours or 14 hours (if you round it)

Step-by-step explanation:

* 15

=13.5

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.