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The number of atoms in a given sample of helium depends on the size of the sample.
One mole of helium at standard temperature and pressure (1 atm & 0°C), for example, occupies 22.4 liters and has 6.02*(10^23) atoms, otherwise known as Avogadro's Number.
1 atom weighs 4 amu
or
1 mole (6.023 x 1023 atoms) weigh 4.0026 g
According to me, the atomic weight of the helium is 4.0026 but not 4. You need a complete answer, right? Well, here it is. 4.0026.
4
Helium has 2 neutrons and 2 protons. Each proton or neutron is 1 dalton. The combined mass is therefore 4 daltons.
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How many atoms are in a molecule of helium?
A molecule of helium is composed of two helium atoms.
How many helium atoms are there in a helium blimp containing 431 kg of helium?
To find the number of helium atoms in a helium blimp, you would first need to convert the mass of helium (431 kg) to moles using the molar mass of helium. Then, use Avogadro's number (6.022 x 10^23 atoms/mol) to calculate the number of helium atoms.
What best describes the motion of helium atoms in gaseous helium?
The helium atoms move quickly in all directions. This is cap
What has more atoms 2.88 grams of helium atoms or 16.4 grams of zinc atoms?
2,88 grams of helium have 3,761.1023 atoms; 16,4 grams of zinc have 1,511.1023 atoms.
Which has greater number of atoms a gram of helium or a gram of neon?
Neon is larger because it has more protons, electrons, and neutrons. Look at the element's Atomic Mass for an idea of its size.
Which has the least number of atoms 5g of hydrogen or 10g of helium?
10g of helium has fewer atoms. This is because the atomic mass of helium is much higher than that of hydrogen, so the same mass of helium contains fewer atoms than the same mass of hydrogen.
How much nuetrons are in helium?
There are 2 neutrons in a helium atoms nucleus , along with two protons.
Is helium made of atoms or molecules?
Helium is made of atoms.
Are atoms made up of helium?
No Helium is made of atoms
How many helium atoms are there in a kilomole of helium?
The number of helium atoms is 6,022 140 857.10e26.
What is helium composed of?
Helium atoms.
In stars energy is produced as primarily hydrogen atoms are combined to form?
helium atoms
How many atoms are in a molecule of helium?
A molecule of helium is composed of two helium atoms.
Helium molecule has how many atoms?
Helium does not form molecules but exists as individual atoms.
How many helium atoms are there in a helium blimp containing 431 kg of helium?
To find the number of helium atoms in a helium blimp, you would first need to convert the mass of helium (431 kg) to moles using the molar mass of helium. Then, use Avogadro's number (6.022 x 10^23 atoms/mol) to calculate the number of helium atoms.
What best describes the motion of helium atoms in gaseous helium?
The helium atoms move quickly in all directions. This is cap
What is helium made up off?
Atoms of Helium !
