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4.002602 g/mol
Marielle Hane
Wiki User
∙ 9y agoWiki User
∙ 9y agoHelium is a gas. atomic number of He is 2.
Wiki User
∙ 9y agoHelium is a non meta element. Atomic mass of it is 4.
Wiki User
∙ 13y agoThe atomic weight of Helium is: 4.002602
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What is the simble for helium?
The symbol of Helium is He. Helium's atomic number is 2.
What is Atomic number 2?
Atomic number 2 is Helium, which has the symbol He
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 is the mass of helium?
helium = 4 molar mass
Is helium a molecule?
Helium is an atom. Heavier elements have molecules.
What is the helium weight?
Helium's atomic weight = 4 amu
What is the atomic weight of Helium atom?
Helium atom has 2 protons and 2 neutrons (that accounts for its atomic weight). The atomic weight of helium is 4.00260
Is a lead atom heavier than a helium atom?
Yes; helium has an atomic weight of 4.00260, and lead has an atomic weight of 207.2.
Do helium or argon gases move faster?
At the same temperature, helium gas will move faster due to its lower atomic weight. Helium has an atomic weight of 4g/ mol, while argon has an atomic weight of 39.95g/ mol.
What is the chemical mass for helium?
The atomic weight of helium is 4,002602(2).
How can you figure out the number of neutrons in an atom?
You subtract the atomic number from the atomic weight. For example, if you have a helium atom and its atomic weight is 4 and you subtract its atomic number (2) the number of neutrons in the helium atom is 2.
How can you figure the numbers of neutrons in an atom?
You subtract the atomic number from the atomic weight. For example, if you have a helium atom and its atomic weight is 4 and you subtract its atomic number (2) the number of neutrons in the helium atom is 2.
What elements do helium make up?
The only element helium makes up is helium. Atomic number: 2 Atomic weight 4.00260 u (avg)
What has the same atomic number and atomic weight - nitrogen helium hydrogen argon?
hydrogen
How do you convert 26.7kg of helium into moles of helium?
6675 moles Moles = weight (in g) / atomic weight = 26700 g / 4 = 6675 moles
What does the number 2 and 4003 mean of helium?
Helium has atomic number 2. That means the helium atom has 2 protons and two electrons. The standard atomic weight of helium is 4.002602, or 4.003 rounded to 3 decimal places.
What is the atomic mass of helium if you know that 2.5 mo of helium has a mass of 10 grams?
Atomic mass = weight in gram / moles = 10 / 2.5 = 4 amu
