Go to the TedEd video and watch the short clip about moles. Once you have watched the video make a short discussion post that explains your understanding of what a mole is and how a mole is related to chemistry (This should be 5 sentences or more).

Ineed with my science work! it’s due tomorrow!

It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided

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.