Answer:
It would be B) -2.5 degrees F
Step-by-step explanation:
If it was 2.5 BELOW zero that would put it -2.5
Answer:
the answer is 28.7
Step-by-step explanation:
move the decimal point to the right by one
we know that
The radius of the hydrogen atom is 
The radius of the nucleus is
m
the ratio is equal to

that means the radius of the hydrogen atom is 44,083.33 times the radius of the nucleus
therefore
<u>the answer is</u>
the ratio is equal to 44,083.33
82.2
Add all of them up and then divide by 10.