What element is present in meteorites and the Sun?

Answer 1

The person who said it was hydrogen was wrong. Its helium,because all stars are composed primarily of hydrogen. Stars can also contain some other elements such as helium, which is the second most abundant element in stars.

Answer 2

Over 90% of the matter in the universe is hydrogen, most of the remaining ten percent is helium, the same goes in stars. Most heavy elements are formed in stars only in the violent last stages of massive stars much larger than our own. Other elements are formed by nuclear fusion in the cores of suns and it's only because suns have lived and died for billions of years that we have as much of the various elements that we do on earth.

Answer 3

All stars are primarily hydrogen, which is the most common element in the universe. As they fuse hydrogen, they create helium, and sometimes lithium. In old stars that have run short on hydrogen fuel, they will begin to fuse the helium "ash" of the original fusion into carbon, oxygen, and other heavier elements. VERY large and massive stars will fuse that material into every element all the way up to iron.

IN the moment of its death, very massive stars explode in supernova explosions. This fuses the iron and other heavy metal elements into every element up beyond gold, lead and uranium. The core of the massive star is crushed into a neutron star or, in extreme cases, into a black hole. The middle and outer layers of the star are blasted back into space, including much of the metal mass created in the instant of the supernova.

From the fact that our Sun contains traces of heavier elements (and from the fact that the Earth contains metal elements like iron and lead) we know that our solar system is a 3rd generation star, formed from the detritus of previous stars.

Answer 4

Meteorites contain all the common elements that you would find here on Earth; iron, silicon, magnesium. It depends on the meteorite; one class of meteorites called "carbonaceous chondrites" contain carbon, nitrogen, oxygen and hydrogen, the CHON elements of life.

One interesting element that is often more prevalent in meteorites than on Earth is iridium; a layer of iridium is sometimes associated with significant impact events in the geological timeline.

Answer 5

There are three classes of meteorites: stony, iron, and stony-iron. A meteorite is heavier than an ordinary rock and will be attracted to a magnet. And there is some nickel there in most cases, especially the more iron is there.

Answer 6

Stars are mainly made of Hydrogen, which by fusion makes helium, and some heavier elements.

Ordinary stars cannot make anything heavier than iron, but in a supernova, can develop high temperatures and for sufficient time, to make heavier elements.

This is known as Nucleosynthesis.

There are exceptions however, Carbon cannot be made in an ordinary star such as our Sun - for that you need a supernova.

Answer 7

Stars, like the matter component of the universe in general, consist of about 75% hydrogen, 23% helium, and trace amounts of other elements, notably carbon, nitrogen, and oxygen. Later in the lifetime of a star, iron builds up, as stars cannot fuse iron into heavier elements.

Answer 8

Meteors have such an enormous speed - in the order of 10-70 kilometers per second! - that no shield would be able to withstand that.

Meteors have such an enormous speed - in the order of 10-70 kilometers per second! - that no shield would be able to withstand that.

Meteors have such an enormous speed - in the order of 10-70 kilometers per second! - that no shield would be able to withstand that.

Meteors have such an enormous speed - in the order of 10-70 kilometers per second! - that no shield would be able to withstand that.

Answer 9

Hydrogen is the most common element in all stars in fact it is the most common element in the universe. Hydrogen converts to helium then to other elements, more and more down the periodic table. Everything in the universe starts as hydrogen .

Answer 10

Most stars consist of Hydrogen and Helium in their active stage (main sequence stars)
These two elements are the most common in the universe. Stars burn hydrogen into helium in the process. Therefore younger stars typically will have relatively more hydrogen compared to helium whereas older stars will have a somewhat higher ratio of helium compared to a younger star.