Sodium chloride if it’s not im sorry :)
Answer:
There are 5 significant digits in 0.23100.
Explanation:
This is because all non-zero digits are considered significant and zeros after decimal points are considered significant.
PH + poH = 14
6.2 +poH = 14
poH = 7.8
The answer is 4. It can hold 4 sublevels as s.p,d,f and it holds 32 electrons