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Two important properties of helium?
Helium is the second lightest element and the second most abundant element in the observable universe.
What is element 1?
Element 1 is hydrogen. It is the lightest and most abundant element in the universe, with one proton and one electron in its atomic structure.
What has an atomic number of 1 and is the lightest element on the periodic table?
Hydrogen! It's the lightest of the elements, the only element whose atoms (typically) contain no neutrons, and it's the most abundant element in the universe because it's the main ingredient in stars, which make up nearly all the universe's mass (as far as we know.)
What is the lightest and most common element on earth?
water is the and most found substance also earth and air
Is helium an element mixture or compound?
Helium is an element. It is a noble gas. It is in the 18th period.
What element is the most lightest and most abundant element in the universe?
The lightest and most abundant element in the entire Universe is hydrogen. Hydrogen has an atomic mass of nearly one.
What is the 1st element?
The first element in the periodic table is hydrogen. It is the lightest and most abundant element in the universe.
Which is the lightest element known is?
The lightest element known is hydrogen. It is the first element in the periodic table and has an atomic number of 1, making it the simplest and lightest element in the universe.
What is the lightest and most abundant element in your universe?
Lithium!
What element is the lightest and simplest and abundant in the universe?
hydrogen
Which of these is the lightest chemical element?
Hydrogen is the lightest chemical element. It has an atomic number of 1 and is the most abundant element in the universe.
Is hydrogen a mixture?
No, it is a colorless, highly flammable gaseous element, the lightest of all gases and the most abundant element in the universe.
What is the element for hydrogen?
The element for hydrogen is H. It is the lightest and most abundant element in the universe, commonly found in water molecules and hydrocarbons.
What describes hygrogen?
a couler less gas that burns easily and is the lightest element of the universe
What is a sentence with the word hydrogen?
"Hydrogen is the first element in the periodic table."
Two important properties of helium?
Helium is the second lightest element and the second most abundant element in the observable universe.
The lightest known element with only one proton is?
Hydrogen is not only the lightest but the only known element with only 1 proton per atom.
