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Helium has 2 protons and 2 neutrons, so the answer is 4.
Wiki User
∙ 13y ago
The average Atomic Mass of helium is approximately 4.0026 atomic mass units (amu). This value is a weighted average of the isotopes of helium, primarily consisting of helium-4 with a small contribution from helium-3.
Wiki User
∙ 11y ago4.0026
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What is the atomic mass average for helium?
The atomic mass average for helium is approximately 4.0026 atomic mass units.
How much does atomic mass helium have?
It's just 4.002602 amu
What is the noble has gas with the lowest atomic mass?
Helium with an atomic mass of 4.00260
What is the relative atomic mass of Helium?
The relative atomic mass of helium is 4.0026.
What element is for times the atomic mass of helium?
The element that has an atomic mass four times greater than helium is beryllium. Helium has an atomic mass of 4.0026 and beryllium has an atomic mass of approximately 9.0122.
What is the atomic mass average for helium?
The atomic mass average for helium is approximately 4.0026 atomic mass units.
How much does atomic mass helium have?
It's just 4.002602 amu
What is atomic mass for helium?
Helium is a non metal element. Atomic mass of it is 2.
What is the noble has gas with the lowest atomic mass?
Helium with an atomic mass of 4.00260
What is atomic weight of helium?
4.002602 g/mol
What is helium's atomic?
Helium's atomic number is 2 and its atomic mass is 4
What is the relative atomic mass of Helium?
The relative atomic mass of helium is 4.0026.
What element is for times the atomic mass of helium?
The element that has an atomic mass four times greater than helium is beryllium. Helium has an atomic mass of 4.0026 and beryllium has an atomic mass of approximately 9.0122.
What is the atomic number and mass of helium?
Helium is a metal element. Atomic number of it is 2.
What is the symobel and atomic number and atomic mass for helium?
Symbol: He atomic #: 2 atomic mass: 4.002602
What is the atomic mass of helium if you know that 2.5 mo of helium has a mass of 10 grams?
The molar mass of helium is 4 g/mol. This means that 1 mole of helium has a mass of 4 grams. Since 2.5 moles of helium have a mass of 10 grams, the atomic mass of helium is 4 grams/mol.
What is the atomic weight of Helium atom?
The atomic weight of a helium atom is approximately 4.0026 atomic mass units (amu). This weight is calculated based on the average weight of all naturally occurring isotopes of helium.
