Does the moon have any elements on it that Earth doesn't have?

As far as scientists now know, the Earth has all the naturally-occuring elements you learned about in chemistry class: (Hydrogen through Uranium, but not Technetium, which is artificially-produced). read more

Since as far as we know there are no nuclear reactors on the Moon, and there have been no nuclear explosions there, so the only way there could be elements there is if they are naturally-occurring, and we already have all of those on Earth. read more

The moon might harbor concentrations of rare earth elements such as uranium and thorium — as well as other useful materials that we're not aware of today — in small, geographically restricted areas, he said, "To explore the whole moon at the level of detail required, that's a big undertaking," Crawford said. read more

In the moon's atmosphere, there are only 100 molecules per cubic centimeter. In comparison, Earth's atmosphere at sea level has about 100 billion billion molecules per cubic centimeter. The total mass of these lunar gases is about 55,000 pounds (25,000 kilograms), about the same weight as a loaded dump truck. read more