Question: What is the most abundant element in the universe?

What are the 3 most abundant elements in the universe?

The first three most abundant elements in the universe are hydrogen, helium, and oxygen (in that order). There are two types of planets that exist: terrestrial, which are made of metals and rocks like Earth, and Jovian, which are gaseous.

What are the top 5 most abundant elements in the universe?

  • 1.) Hydrogen. Created during the hot Big Bang but depleted by stellar fusion, ~70% of the Universe remains hydrogen.
  • 2.) Helium. About 28% is helium, with 25% formed in the Big Bang and 3% from stellar fusion.
  • 3.) Oxygen.
  • 4.) Carbon.
  • 5.) Neon.
  • 6.) Nitrogen.
  • 7.) Magnesium.
  • 8.) Silicon.

What is the 3rd element?

Lithium is the element that is atomic number 3 on the periodic table. Lithium is a soft, silvery, light alkali metal denoted with the symbol Li.

What is the rarest element in the universe?

Astatine is the rarest naturally occurring element.

What are the 5 most common elements on earth?

The mass-abundance of the nine most abundant elements in the Earth’s crust is approximately: oxygen 46%, silicon 28%, aluminum 8.3%, iron 5.6%, calcium 4.2%, sodium 2.5%, magnesium 2.4%, potassium 2.0%, and titanium 0.61%. Other elements occur at less than 0.15%.

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What makes up 80 percent of air?

Air is composed of a mixture of gases and is not a gas in itself. However, air is mostly nitrogen — almost 80 percent of it. Nearly all the rest of it is oxygen, with about 1 percent being argon. All of the rest of the gases make up only a fraction of a percent of the air.

Does space have oxygen?

Creating oxygen in space isn’t as hard as you think. Since 2000, there’s been at least one human living and breathing outside of the earth’s lower atmosphere orbiting aboard the International Space Station (ISS). However, when it comes to water and air, the space station is completely self-sufficient.

Why does the third period have 8 elements?

According to the 2n2 rule, the maximum number of electrons in the third period = 2 x (3)2 = 18. But, the last shell cannot accommodate more than 8 electrons so, the number of electrons in third period is 8. Hence, the number of elements is also 8.

What is Group 3 called?

Lr. Group 3A (or IIIA) of the periodic table includes the metalloid boron (B), as well as the metals aluminum (Al), gallium (Ga), indium (In), and thallium (Tl). Boron forms mostly covalent bonds, while the other elements in Group 3A form mostly ionic bonds.

Why is chlorine in period 3?

Explaining the Trend

Across the period, the valence electrons for each atom are in the 3-level. They are screened by the same inner electrons. The only difference is the number of protons in the nucleus. From sodium to chlorine, the number of protons steadily increases and so attracts the bonding pair more closely.

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What is the hardest thing in the universe?

Summary: A team of scientists has calculated the strength of the material deep inside the crust of neutron stars and found it to be the strongest known material in the universe.

What is the most expensive thing in the universe?

An astroid named 16 Psyche, after Cupid’s wife, was found to be made almost entirely of iron and nickel. That means, in current US markets, 16 Psyche is worth somewhere around $10,000 quadrillion (the world’s economy is around $74 trillion).

What is the most expensive element on earth?

As of 2020, the most expensive non-synthetic element by both mass and volume is rhodium. It is followed by caesium, iridium and palladium by mass and iridium, gold and platinum by volume. Carbon in the form of diamond can be more expensive than rhodium.

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