1 mol of helium that means the number of atoms is equal to Avagadro's constant = 6.022 X 10 23 Helium has 2 electrons and 2 protons. Thus, 1 mole of helium atom has = 2 x 6.022 X 10 23 = 1.204 X 10 24 electrons.
- Jan 28, 2017 22.4 liters for an ideal gas at STP In reality the 22.4 liters per mole is only an approximation for many gases. Ideal gases actually do not exists though inert gases behave very close to ideal gas laws. The interactions between molecules do affect the behavior of the gases making small changes to the ideal value of 22.4 liters for an ideal gas.
- In one mole of helium, there is 6.02 x 10.23 atoms. In 1 mole of any substance, it contains 6.02 x 10.23 particles of that substance. This number (6.02 x 10.23) is known as Avogadro's number.
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