How to Calculate Ionization Energy of Helium
Ionization energy is a crucial measure in chemistry, physics, and materials science. This guide explains how to calculate helium’s ionization energy, a key property of this noble gas.
- Enter the number of electrons (n) in the input field.
- Select ‘Helium’ from the atomic number (Z) dropdown.
- Click ‘Calculate’ to find the ionization energy.
The ionization energy (IE) of an atom can be calculated using the following formula:
IE = -13.6 * (Z^2 / n^2)
Where:
- Z is the atomic number (2 for helium).
- n is the number of electrons in the valence shell (2 for helium).
| Gas | First IE | Second IE |
|---|---|---|
| Helium | 2372 | — |
- Ionization energy increases across a period in the periodic table.
- It decreases down a group.
- Ionization energy is a measure of the attraction between an electron and its nucleus.
What is ionization energy?
Ionization energy is the amount of energy required to remove an electron from an atom in its lowest energy state.