Carbon has different isotopes. what is different between an atom of 12c and an atom of 13c? question 7 options: a. number of protons in the nucleus b. number of electrons in the atom c. number of protons and electrons in the atom d. number of neutrons in the nucleus

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.