How can the same element be used in nuclear fuel rods and fake diamonds?​

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.