You use the equation M1V1=M2V2 for dilution problems
(250)3=.5x
x= 1500 mL
The answer is 1. This is because electronegativity increases up a group and across a period. So metals are going to be the least electronegative. 4.0 is the most electronegative element on Paulina's Scale!
I had this same question on one of are worksheets is D I can’t really explain it but the answer is D
Answer:
PROPERTIES! HOPE THIS HELPS! :)
Explanation: