Why is hydrogen and helium the most abundant elements in the universe?

Hydrogen — with just one proton and one electron (it’s the only element without a neutron) — is the simplest element in the universe, which explains why it’s also the most abundant, Nyman said. Helium has two protons, two neutrons and two electrons.

Why is hydrogen the most abundant element in space?

Hydrogen has one proton, one electron and is the only element with no neutrons, making it the simplest element in the universe. Because of this, Hydrogen is believed to be the most abundant element, accounting for about 90\% of the visible universe.

Are hydrogen and helium the most abundant elements?

Hydrogen is the most abundant element in the Universe; helium is second. However, after this, the rank of abundance does not continue to correspond to the atomic number; oxygen has abundance rank 3, but atomic number 8.

What is the most abundant element in the universe and why?

Hydrogen is the most abundant element in the universe, accounting for about 75 percent of its normal matter, and was created in the Big Bang. Helium is an element, usually in the form of a gas, that consists of a nucleus of two protons and two neutrons surrounded by two electrons.

What makes hydrogen and helium different?

Explanation: Hydrogen has only one proton and most commonly has no neutrons. Helium has two protons and needs to have at least two neutrons to provide stability and hold the positively charged protons together. This means the Helium is stable as a single atom and does not join with another Helium or other atoms.

Where is hydrogen most abundant?

the sun
Natural abundance Hydrogen is easily the most abundant element in the universe. It is found in the sun and most of the stars, and the planet Jupiter is composed mostly of hydrogen. On Earth, hydrogen is found in the greatest quantities as water.

Why is Hydrogen the most important element?

Hydrogen plays a vital role in fusion reactions that power stars like our sun. These reactions not only produce heavier elements but also release very large amounts of energy. The vast amounts of energy emitted by the sun come from nuclear reactions that fuse hydrogen atoms into helium atoms.

Are Hydrogen helium and oxygen the most abundant elements in the universe?

Hydrogen is the most abundant element in the universe, followed by helium. Oxygen accounts for about 1 percent. All the other elements together only account for a bit more than one percent!

How are hydrogen and helium atoms similar?

All atoms of hydrogen have one proton in the nucleus and one electron. How can H atoms be similar to He atoms? All atoms of helium have two protons in the nucleus and two electrons. Atoms of hydrogen and atoms of helium can have the same number of neutrons in their nucleus.

Why is hydrogen the most abundant element in the universe?

The element Hydrogen has only one proton and one electron and is the only element which has no neutrons. Therefore it is considered as the simplest element in the universe and gives a valid reason for it to be the most abundant and common element in the universe.

What is the second most abundant element in the universe?

Nyman also said that Hydrogen atoms fuse and produce helium, which is the second most abundant and common element in the universe. Both the elements together, i.e. Helium and Hydrogen make up 99\% of the universe. Still, in the universe, there is about 10 times more Hydrogen than helium.

Which two elements make up 99\% of the universe?

Both the elements together, i.e. Helium and Hydrogen make up 99\% of the universe. Still, in the universe, there is about 10 times more Hydrogen than helium.

What is the most common and abundant element on Earth?

Not only in the planet earth, but in the whole universe, Hydrogen is considered as the most common and abundant element.