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Helium is much safer, so it is often used in balloons and blimps, not spacecraft.
Hydrogen is still used as a fuel. Helium will not burn.
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How many groups and how many periods does the modern periodic table have hydrogen and helium should be counted as the first period.?
The periodic table has 18 groups ant 7 periods. Hydrogen and helium are considered members of the first period.
What are three types of rockets that power modern spacecraft?
The answer, is that there are only two types of rockets which fuel modern spacecraft. they are solid fuel rockets, and liquid fuel rockets
Why are Blimps filled with helium?
Hydrogen, which has more lift per quantity- is too volatile and explosive- remember the HIndenberg! Helium is only practical lifting gas for modern dirigibiles. There were rumors the Navy synthesized something during World War II for blimp lifting gas but details are sketchy.
Why is helium used in hot air balloon?
It isn't. Hot air Ballons use Hot Air. Hot air being lighter and therefore less dense than normal air allow the balloon to float.
What nuclei are fused in the nuclear reaction of a hydrogen bomb?
Deuterium (heavy hydrogen) nuclei and tritium nuclei to form helium nuclei. This comes from lithium deuteride in modern "dry" hydrogen bombs. Neutrons from fission splits the lithium generating tritium just before fusion is ignited..
Which element is used to absorb heat in spacecrafts?
The element is used to absorb heat in a spacecraft is helium. There are modern technologies that are being developed for the same purpose.
What type of gas filled the Hindenburg airship?
It was hydrogen. That's why it caught fire. Modern airships use helium.
Modern view of the galaxy formation?
The Big Bang leads to huge clouds of hydrogen and helium, which eventually condense into galaxies.
How many groups and how many periods does the modern periodic table have hydrogen and helium should be counted as the first period.?
The periodic table has 18 groups ant 7 periods. Hydrogen and helium are considered members of the first period.
Why was the Hindenburg filled with gas?
The Hindenburg was a Zeppelin (a German made lighter-than-air airship), similar to a modern day blimp. It was filled with hydrogen gas that gave it enough lift to allow it to get off the ground. Modern day blimps & balloons use helium gas. Helium has less lift capacity than Hydrogen, however it is not flammable. Hydrogen is flammable.
What are three types of rockets that power modern spacecraft?
The answer, is that there are only two types of rockets which fuel modern spacecraft. they are solid fuel rockets, and liquid fuel rockets
Why are Blimps filled with helium?
Hydrogen, which has more lift per quantity- is too volatile and explosive- remember the HIndenberg! Helium is only practical lifting gas for modern dirigibiles. There were rumors the Navy synthesized something during World War II for blimp lifting gas but details are sketchy.
What is the purpose of helium gas in a modern airship?
The purpose of Helium gas in any airship, including modern airships, is to reduce the overall density and thus provide "lift."
Is the element helium used in modern submarine hulls?
yes
Why is helium used in hot air balloon?
It isn't. Hot air Ballons use Hot Air. Hot air being lighter and therefore less dense than normal air allow the balloon to float.
What nuclei are fused in the nuclear reaction of a hydrogen bomb?
Deuterium (heavy hydrogen) nuclei and tritium nuclei to form helium nuclei. This comes from lithium deuteride in modern "dry" hydrogen bombs. Neutrons from fission splits the lithium generating tritium just before fusion is ignited..
Why are airships safer than today they were in the past?
Modern airships use Helium for lift which is non-combustible whereas in the past airships such as the Hindenburg used Hydrogen for lift which is highly combustible. In addition, modern airships take advantage of new alloys and polymers which give them a much stronger airframe.
