Machine-translated by Google. Questions are authored in English.
Top

Discussion

The most abundant metal in earth crust is

  • A.Iron
  • B.Magnesium
  • C.Calcium
  • D.Aluminium

Answer: D

Aluminium is the most abundant metal in the earth's crust, at about 8 per cent by mass.

Iron follows at about 5 per cent, then calcium, sodium, potassium and magnesium. Overall the crust's commonest elements are oxygen (46 per cent) and silicon (28 per cent), neither of which is a metal.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.