As the number of electrons added to the same principal energy level increases, atomic size generally
C. Decreases.
The answer is c)11 because copper has 11 valence electrons
Answer- pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral.
The answer is most likely nonmetals. :)
Density=mass/volume
d= 452.1/292
d= 1.55g/cm3