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When a low mass star first runs short of hydrogen in its core it becomes brighter because?
Wiki User
∙ 9y ago
Low mass stars become brighter after depleting hydrogen because all of the hydrogen in the core has been fused into helium. Once this happens, hydrogen fusion begins in the outer layers, which causes more heat and light generation.
Wiki User
∙ 9y ago
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Why hydrogen gas is liquefied first than helium gas?
Because hydrogen is lighter that helium
How do you justify the position of hydrogen at the top of various group?
Hydrogen was placed in the first group because has a high tendency to loss an electron.
Why is H used for hydrogen?
Probably because that's the first letter of the word.
When written in wet chalk first it is not visible but slowly it becomes visible why?
because you have to let it dry
Why is hydrogen placed at the top of the periodic table and not in group 1?
Hydrogen is in fact in group 1 physically although not considered an alkali metal. It is at the top because the table is arranged by increasing atomic number; hydrogen is atomic number one, so it's first on the table.
Why hydrogen gas is liquefied first than helium gas?
Because hydrogen is lighter that helium
What star is 18000 times brighter than the sun?
first of all there is no star brighter then the sun and i can say that because ive been in space with my friends dad hes a astronaut we went because we had aproject on it so yh i know
What color do we see at birth?
They can see all the colours, but a bit brighter because it is their first time seeing these colours.
How many times brighter is a first magnitude star than a third magnitude?
2 magnitudes brighter means it's about 2.512 x 2.512 times brighter. So that's about 6.31 times brighter.
Why is hydrogen considered the primordial element in the universe?
Because hydrogen is the most abundant element in the universe. Also hydrogen was the first element which appeared after Big Bang.
How do you justify the position of hydrogen at the top of various group?
Hydrogen was placed in the first group because has a high tendency to loss an electron.
Why is H used for hydrogen?
Probably because that's the first letter of the word.
What element was discovered first hydrogen or promethium?
Hydrogen was the first.
Can we produce water from reacting hydrogen with oxygen?
We could. We usually don't, because most hydrogen is produced by electrolysis from water in the first place. But we could if we found ourselves with an excess of hydrogen and a deficit of water for some reason.
What is a large cloud of dust and gas that becomes a star star?
That would be a nebula, which is an interstellar cloud of hydrogen gas, dust, and plasma. It is the first stage of a star's cycle.
What gas was used to fill the first air ships?
Hydrogen was first used but was generally replaced with helium because of it's flammability.
Why does a fish market at first seem to have a strong odor that in time becomes less offensive?
it is because after that our body becomes used to it so we do not feel it offensive..
