Why does the chemical composition of the planets varies systematically with distance from the Sun?

Answer 1

Basicaly speaking, when the planets were just little chunks of matter smashing against eachother and combining to finaly become the planets we know today, (This is called the Protoplanetary Disk), the inner area was much warmer. Lighter elements like Nitrogen don't condense at these tempatures, so they stayed gasses and were less likely to become part of the protoplanetary mass.

Further out, it was cooler, so they collected a lot of the gases, crystals and vapors left over.

Answer 2

The solar is the skill homestead that makes all of the different issues. Hydrogen (solar) is grew to become via fusion into different components, trouble-free chemistry does the rest. The gaseous giants might have been short existence suns, yet did not make it (fortunate for us). The gaseous planets at the instant are produced from hydro carbons by way of stress and warmth, the mandatory flash over into suns in simple terms did not ensue.

Answer 3

for those of you answering this question the choices are:

a. The gas cloud from which the solar system formed was not of uniform composition.
b. Comets took the ice from the inner solar nebula away.
c. Temperature variations in the solar nebula determined which materials condensed at each radius.
d. There were no iron or silicate particles in the outer nebula.
e. The hydrogen gas near the terrestrial planets was all combined into water.

Answer 4

Gravity and molecular density.