We can not simply come to the conclusion that original asteroid had a similar comosition of metals and carbon. There may be a possibility of nuclear radiactivity from which initial compostion is redistributed into metals and carbon type The unstable elements in the asteroids have been acquired the stable configuration and then redistributed as two separate belts. Solution We can not simply come to the conclusion that original asteroid had a similar comosition of metals and carbon. There may be a possibility of nuclear radiactivity from which initial compostion is redistributed into metals and carbon type The unstable elements in the asteroids have been acquired the stable configuration and then redistributed as two separate belts..