The last stage of a star having 20% of the sun's mass is a Helium white dwarf.

Here's the step by step explanation:

1. Stars with less than half the mass of the Sun cannot fuse helium. These stars, often called red dwarfs, burn hydrogen slowly over tens to hundreds of billions of years and then become helium white dwarfs.

2. A helium white dwarf is a kind of white dwarf that consists mostly of helium. Its atmosphere, unlike that of a typical white dwarf, does not contain hydrogen.

3. Therefore, a star with 20% of the Sun's mass would end its life as a helium white dwarf.

Question

The last stage of a star having 20% of the sun's mass is a Helium white dwarf.

Here's the step by step explanation:

1. Stars with less than half the mass of the Sun cannot fuse helium. These stars, often called red dwarfs, burn hydrogen slowly over tens to hundreds of billions of years and then become helium white dwarfs.

2. A helium white dwarf is a kind of white dwarf that consists mostly of helium. Its atmosphere, unlike that of a typical white dwarf, does not contain hydrogen.

3. Therefore, a star with 20% of the Sun's mass would end its life as a helium white dwarf.

Knowee AI · Accepted Answer

The last stage of a star having 20% of the sun's mass is a Helium white dwarf.

Here's the step by step explanation:

1. Stars with less than half the mass of the Sun cannot fuse helium. These stars, often called red dwarfs, burn hydrogen slowly over tens to hundreds of billions of years and then become helium white dwarfs.

2. A helium white dwarf is a kind of white dwarf that consists mostly of helium. Its atmosphere, unlike that of a typical white dwarf, does not contain hydrogen.

3. Therefore, a star with 20% of the Sun's mass would end its life as a helium white dwarf.

Which of the following is the last stage of a star having 20% of the sun's mass?*5 pointsHelium white dwarfCarbon-oxygen white dwarfBlack dwarfSnow white dwarfNone of the above

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