Hydrogen has two stable isotopes, 1H and 21H, and sulfur has four stable isotopes, 32S, 33S, 34S, and 36S. 16 16 16 16 How many peaks would you observe in the mass spectrum of the positive ion of hydrogen sulfide, H2S1

Helium decays to form lithium. which equation correctly describes this decay?

Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent

How does carbon monoxide pose the greatest threat to humans? a. it can be produced by wood fires. b. it can be produced by home furnaces. c. it is produced by acid rain. d. it is produced by modern automobiles.