But what about intial He atom with 2 electrons?harsh_sinha said:He+ is a hydrogen like species as it has one electron.So Bohr's model is applicable on it.
Bohr's model is not applicable for He atom.Besides if we use this equation to calculate IP2 then the result would be twice of the actual value.physicsmaths1613 said:But what about intial He atom with 2 electrons?
I can only get the right answer from that by interpreting the IP2 as the energy to remove the second electron from He+, and the IP1 as the energy required to ionise H (which makes sense).physicsmaths1613 said:IP 2= IP1*Z2
Ionization energy is the amount of energy required to remove an electron from an atom or molecule, resulting in the formation of a positive ion.
Ionization energy is typically measured in units of electron volts (eV) or kilojoules per mole (kJ/mol). It is measured by bombarding atoms with high-energy particles and measuring the amount of energy required to remove an electron.
The ionization energy of a helium atom is 24.6 eV, which is the amount of energy required to remove an electron from a helium atom in its ground state.
Helium has a higher ionization energy than other elements because it has a full outer electron shell, making it more stable. This means that it takes more energy to remove an electron from helium compared to other elements with incomplete outer shells.
The high ionization energy of helium makes it relatively unreactive and nonreactive in most chemical reactions. This is because it takes a lot of energy to remove an electron from helium, making it difficult for it to form bonds with other elements.