0
What else can I help you with?
What is a massive star made of?
It's made of a hydrogen and helium dickinson in the air .
Why mass is so important in determining the evolution of a star?
Hydrogen, helium, and carbon fuel are found in more massive stars. The diameter of more massive stars is bigger. Helium is found in greater abundance in more massive stars. The weight of more massive stars is greater.
Are all-stars made of similar elements?
Younger stars often are made up mainly of hydrogen, perhaps with some helium. Less massive stars will only fues hydrogen into helium, so eventually they will end up having a lot of helium. More massive stars however will eventually start fusing helium to metals, i.e., heavier elements. In any case, the "metallicity" (percentage of elements heavier than helium) and the percentages of different elements should vary somewhat between different stars.Younger stars often are made up mainly of hydrogen, perhaps with some helium. Less massive stars will only fues hydrogen into helium, so eventually they will end up having a lot of helium. More massive stars however will eventually start fusing helium to metals, i.e., heavier elements. In any case, the "metallicity" (percentage of elements heavier than helium) and the percentages of different elements should vary somewhat between different stars.Younger stars often are made up mainly of hydrogen, perhaps with some helium. Less massive stars will only fues hydrogen into helium, so eventually they will end up having a lot of helium. More massive stars however will eventually start fusing helium to metals, i.e., heavier elements. In any case, the "metallicity" (percentage of elements heavier than helium) and the percentages of different elements should vary somewhat between different stars.Younger stars often are made up mainly of hydrogen, perhaps with some helium. Less massive stars will only fues hydrogen into helium, so eventually they will end up having a lot of helium. More massive stars however will eventually start fusing helium to metals, i.e., heavier elements. In any case, the "metallicity" (percentage of elements heavier than helium) and the percentages of different elements should vary somewhat between different stars.
What are the symbols for hydrogen and helium?
The symbol for hydrogen is H, and the symbol for helium is He.
What are the two main elements found in the stars?
Hydrogen and helium
Do all stars turn hydrogen in to helium?
No, not all stars turn hydrogen into helium. Stars like our Sun do convert hydrogen into helium through nuclear fusion in their cores. However, more massive stars can undergo further fusion reactions involving helium, producing heavier elements like carbon, oxygen, and even iron.
The last two elements that a massive star produces are hydrogen and helium why is this the last reaction?
Hydrogen and helium are the lightest and most abundant elements in the universe. In the core of a massive star undergoing nuclear fusion, hydrogen and helium are fused into heavier elements like carbon, oxygen, and iron. Once the star reaches the stage where it can no longer sustain fusion reactions to produce heavier elements, hydrogen and helium remain as the last elements in its core before it undergoes a supernova explosion.
Hydrogen and helium formulas?
Hydrogen is H2. Helium is He.
How do star use energy?
Stars fuse hydrogen through nuclear fusion into helium and release the massive resulting energy into space.
Is the sun a soild?
No, the sun is not a solid. It is a massive sphere of hot gases, primarily composed of hydrogen and helium.
When does the dying phase of a massive star begin?
The dying phase of a massive star begins when it runs out of usable hydrogen that it can convert to helium. Once it becomes a red giant, it slowly dies out.
Why does an old main sequence star have more helium than a young main sequence star?
Stars convert hydrogen into helium over time.However, please note that they do so at very different rates; a massive star burns its fuel (hydrogen) much faster than a less massive star - so you can well have a massive star, which is only a few million years old, but which already burnt much of its fuel.
