Stars are made up of mostly hydrogen and helium. These two gasses comprise most of the universe, and formed some 300,000 years after the big bang, after matter decoupled from the electromagnetic force and the temperature of the universe had sufficiently cooled.
All stars fuse hydrogen into helium - the slight difference in atomic weight between 4 hydrogen atoms and one helium atom, is given off as radiation.
True. Gas giants like Jupiter and Saturn do not have a solid surface; instead, they are composed mostly of gases such as hydrogen and helium. However, they are believed to have a dense, solid core made up of rock and metal at their centers.
Oops ! No. The statement is going along pretty good until the end.The star actually fuses hydrogen into helium .
No, the sun is not made of gold. The sun is primarily composed of hydrogen and helium, with trace amounts of other elements. The intense heat and pressure at the sun's core lead to nuclear fusion reactions that produce its energy and light.
All stars are comprised of around 98% hydrogen and helium, of which approximately 3/4 is hydrogen.This is also true of all the matter in the universe as a whole.While stars contain some amount of pretty much every element, they are made primarily of hydrogen and helium.
True. The Sun is mainly composed of hydrogen (about 74% of its mass) and helium (about 24% of its mass). The remaining 2% consists of trace amounts of heavier elements.
True. Jupiter is consisted of mainly hydrogen and helium. 90% hydrogen, 8% helium and 2% other gases
8=D True
Neptune is mainly composed of gas, such as hydrogen and helium, with a small rocky core. It does contain water in various forms, including water ice, but it is not the dominant component of the planet.
True
All stars fuse hydrogen into helium - the slight difference in atomic weight between 4 hydrogen atoms and one helium atom, is given off as radiation.
False. A star is born when hydrogen starts to fuse into helium.
True. Gas giants like Jupiter and Saturn do not have a solid surface; instead, they are composed mostly of gases such as hydrogen and helium. However, they are believed to have a dense, solid core made up of rock and metal at their centers.
No, the first element on the Periodic Table is Hydrogen, but because of its unusual behaviour it is usually placed by itself, not next to any other elements. The second element is Helium.
mostly water
Oops ! No. The statement is going along pretty good until the end.The star actually fuses hydrogen into helium .
No, the battery generates hydrogen gas. This can be explosive!