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What property do hydrogen and helium have in common?
Hydrogen and helium are both present in significant amounts in the universe. They are also both light gases that have low atomic masses.
What is the lighter element hydrogen or helium?
Hydrogen. It's first on the periodic table, with usually a sigle proton, and an atomic weight of 1.00794.
What has the same atomic number and atomic weight - nitrogen helium hydrogen argon?
hydrogen
Is the element with the least atomic mass hydrogen or is it helium?
The answer is Hydrogen.
Which element has the smallest atomic radius hydrogen or helium?
It is hydrogen.
What is the atomic sign for helium on the periodic table?
The atomic symbol for helium on the periodic table is He.
Which elements have the smallest atomic mass?
Hydrogen and Helium
What is the element with the least atomic mass is hydrogen or helium?
Hydrogen's atomic mass (1 amu for the most stable isotope) is less than that of helium (4 amu).
Which element has the smallest atomic number helium carbon nitrogen hydrogen?
Hydrogen.
Does hydrogen or helium have the least atomic mass?
Hydrogen has the lowest atomic mass of all the elements. Hydrogen has one proton and one electron. Helium, two neutrons, two protons and two electrons.
What two elements are common in the sun?
The two common elements found in the sun are Hydrogen and Helium.
What is helium in relation to hydrogen?
The atomic number of helium is one more than that of hydrogen. In both the elements, the electrons are filled in the 1s orbitals. Hydrogen has one electron, helium has two.
