# Calculate the number of atoms in 52 u of He.

By BYJU'S Exam Prep

Updated on: September 25th, 2023

The number of atoms in 52 u of He is 7.8286 x 1024. We know that one mole contains 6.022 x 1023 atoms.

Therefore, One mole of He = 4u

Hence according to the question, we can write as:

Number of moles in 52u of He = 52/4

= 13 moles

Number of atoms in 13 moles = 13 x 6.022 x 1023

= 7.8286 x 1024

### Uses of Helium

• Most commonly, weather balloons and altitude research employ helium.
• It functions as an inert protective gas during autogenous welding.
• The only cooler that can lower temperatures down below 15K is this one (-434oF).
• Helium is used to create crystals of germanium and silicon.
• Since helium diffuses through solids much more quickly than air, it is employed in industry to locate pipeline breaches.
• This element is used in gas chromatography as a carrier gas.
• Due to its low melting point, liquid helium is used extensively in cryogenics, MRI, and superconducting magnets.

Summary:

## Calculate the number of atoms in 52 u of He.

The number of atoms in 52 u of He is 7.8286 x 1024. Helium is the element that you can find on the upper right side of the periodic table with atomic number 2. It comes first among the family of noble gases.

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