From the following isotope notation, detemine the number of protons, neutrons & electrons.

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

What does the mass of 0.7891 mol of ferric oxide (fe2o3)

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.