Are metals, chemicals and gases in other planets similar to what's found on Earth?

Answer 1

Since all heavy elements are formed by the same processes in stars, the same elements in similar concentrations will be found throughout the universe. For example, you are apt to find more iron than gold anywhere you look.The compounds and minerals formed will often be similar, because there are certain favored chemical combinations, but differing conditions will produce different combinations and different forms. We can identify material from our solar system by its characteristic isotopes of various elements, and we can also distinguish among Earth rocks, moon rocks, Mars rocks, and various sorts of meteorites by the minerals they contain. Some meteorites and comet dust have been identified as coming from other solar systems because their isotope concentrations are different from what is seen in our solar system.

You also have the rare presence on Earth of an active biosphere. The high concentration of molecular oxygen and many complex organic compounds exist here because of the actions of plants and animals.

Answer 2

Usualy the things you listed above exist on a planet, because the nebula that the planet was formed in used to be a "big" star. Almost all complex elements were made in stars because the nuclear fuision in stars starts fuising hydrogen, then when all the hydrogren is fused into helium, its fuises that, then onward until Iron is formed and the star cannot obtain nuclear energy anymore. When that star eventualy goes nova, a nebula is formed and all the elements that were in that star are now floating around the blast area until gravity starts to act again and a new solar system forms. Assuming the majority of star systems are made in this way, the majority of planets would have the same elements.

Answer 3

Yes, may be. But not all the metals and gases are similar to other planets. There are some similar elements which are found on Earth and even on other planets. But!, not all are similar, because Earth is a Unique Planet where LIFE exists!!

Answer 4

Take a look at the good ol' Periodic Table. Everything in the Universe is made from those elements. Now, not every planet is going to have every element in or on it, but it won't have anything NOT on the periodic table.

Answer 5

Yes. Everything in the physical universe is made up of the same elements.

Answer 6

Yes, those planets are part of the same universe.

Answer 7

Yes, but in different concentrations