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Yes; it contains 2 protons and 2 neutrons.

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8y ago
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8y ago

Yes, it is true.

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Q: Is it true that the mass of an atom of helium-4 is 4 amu?
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Related questions

What is the mass ratio from a hydrogen atom to ununoctium atom?

Mass of hydrogen atom = 1 amu Mass of ununoctium atom = 294 amu So ratio = 1 : 294


What is the mass of a single atom of xenon in amu?

It will be 131.29 amu


What is the mass of a proton in an atom?

1.007316 (amu)


What is the mass of a helium atom?

4.0026 amu


What is the mass of an aluminum atom?

An Aluminum atom is 26.9815 AMU on *average*.


How many number of neon atom in 300 amu of neon?

Devide mass by atomic mass to get 15 atoms Ne 300 (amu) / 20.2 (amu/atom Ne) = (14.9 atoms) = 15 atoms (= 303 amu)


What is the mass of an hydrogen atom?

The atomic mass of Hydrogen is 1.00794 amu.


What is the weight of the atom if an atom has 9 protons?

The weight (mass) of an atom with 9 protons will vary depending on the number of neutrons. 9 protons defines the atom as fluorine (F), and it can have 10 protons, making the mass 19 amu, or it can have a mass of 14 amu up to 31 amu, but the only stable isotope is the one with a weight (atomic mass) of 19 amu.


What is mass of H atom at STP?

1.00794 amu


What is the atomic mass for an atom of helium?

4.0026 amu


Element A has atom which is 3 times lighter than that of Carbon-12 Calculate its atomic mass?

Mass of C-12 atom = 12 amu mass of C-12 atom = am So atomic mass of A = 4 amu source ; www.examville.com


As we know that 1amu not equal to mass of 1 proton then why protium is equal to 1amu?

The atomic mass unit (amu) is defined as 1/12 the mass of a carbon-12 atom. It is a unit of mass that is used to describe the masses of atoms and molecules. The mass of a proton is actually slightly less than the mass of a carbon-12 atom, so it is not equal to 1 amu. However, the mass of a protium atom (which is an atom that consists of a single proton and no neutrons) is very close to 1 amu. This is because the mass of the proton makes up most of the mass of a protium atom. Therefore, protium is often said to be "approximately equal" to 1 amu.