Current theory states that it's "dark energy".
Hydrogen is the most abundant element in the universe.
Hydrogen is the most abundant element in the universe.
The mass that exerts a force of attraction on every other mass in the universe is known as gravity. This fundamental force is responsible for the attraction between all objects with mass and is what keeps celestial bodies like planets, stars, and galaxies in motion.
Most matter in the universe exists in the form of dark matter and dark energy, which are currently not fully understood by scientists. These two components make up the majority of the universe's mass-energy content, with ordinary matter (protons, neutrons, electrons) making up only a small percentage.
Most of the mass of visible matter in the universe is composed of baryonic matter, which includes ordinary atomic particles such as protons, neutrons, and electrons. This baryonic matter primarily forms stars, planets, and galaxies, with hydrogen and helium being the most abundant elements. Additionally, a significant portion of this mass is found in interstellar gas and dust. However, it is important to note that visible matter constitutes only a small fraction of the total mass-energy content of the universe, with dark matter and dark energy making up the majority.
The ratio of elements depends on the context. Helium is the second most abundant common element in the universe (23% by mass) but in the earth's crust, it accounts for only 8 parts per billion. Conversely, silicon accounts for around 28% of the earth's crust but 0.07% of the universe.
For the universe in which the earth exists, hydrogen accounts for 75% and helium for 23%. All the remaining elements , together, account for 2%. So there is no element which accounts for 20%.Furthermore, helium is very rare on earth - it accounts for approx 8 parts per billion or 0.0000008%.
Hydrogen is the most abundant element in the universe.
Hydrogen is the most abundant element in the universe.
The most abundant gas in the universe is hydrogen. Hydrogen atoms make up about 75% of the universe's elemental mass.
The most abundant element in the universe is hydrogen. It makes up about 74% of normal matter by mass.
The majority of Earth's mass is concentrated in its core, which is composed mostly of iron and nickel. This dense core makes up about 33% of Earth's total mass and accounts for much of the planet's gravitational pull.
The most abundant element in the universe is hydrogen.
The lightest and most abundant element in the entire Universe is hydrogen. Hydrogen has an atomic mass of nearly one.
The 4th most abundant element in the universe is neon. It is a noble gas that makes up about 0.13% of the universe by mass, following hydrogen, helium, and oxygen. Neon is used in lighting, advertising signs, and cryogenic refrigeration.
I am not sure about the percentage, but most of the mass is concentrated in the Sun.
Hydrogen is the most abundant element in the universe.