A student recorded the following while completing an experiment. Appearance of substance: silvery shiny powder. Effect of magnet: silvery, shiny powder was attracted. Conductivity: conducts electricity. How should this student classify the substance?
Jul 8, 2016
metallic (shiny, electrical conductor)
Fe, Co, Ni - all magnetic, all 'silvery'
Probably Co or Ni because Fe rusts fairly easily and tends to have a darker partially oxidised appearance.