Answer:
hi peps
Step-by-step explanation:
12
An atom of sodium has 11 proton, 11 electrons, and 12 neutrons.
I don't know were the statement are but here are the specs of each set
Set A
mean; 83.83333
median; 87.5
mode; it has no mode
range; 147
Set B
mean; 67.08571
median; 3
mode; no mode
range; 376
hope this helps sorry for late answer :)
