Which contains the most number of total atoms?
CH1206
CO2
2H2O
MO

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work

Light waves can move through , but they travel fastest when they move through a(n) .