4. Which of the following is most likely to have a -1 ion?
a. Copper
c. Phosphorus
b. Sulfur
d. Bromine

What effect might melting sea ice have for people who live in coastal areas?

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg

Which of the following units is not an official si unit