Hydrogen or Helium?

Chemistry Level 2

Which of the following is heavier out of the two

  • The total sum of atomic masses of 4 hydrogen atoms
  • The atomic mass of 1 helium atom?


  • The atomic mass should not be approximated to any nearest decimal place (specially not up until 10 places).
  • Atomic mass refers to the average atomic mass calculated keeping in mind the individual masses of all isotopes and their respective abundancies in nature.

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